Having an issue - can't find real records :s

//We'll get right to the heart of the matter.

/*++++++++++++++++++
the problem lies in here
+++++++++++++++++++*/
while (true) {
 search = prompt('Search student records: type a name [Jody] (or type "quit" to end)'); 
/*1. You never need to .toLowerCase() null. Null does not have the ability to be lower-cased
(it already is but that's not the point lol) or uppercased. It just is null. */
  if (search.toLowerCase() === 'quit' || search.toLowerCase() === null) {
   break; //lovely
  } 
  for (var i = 0; i < students.length; i += 1) { //good ... expression is perfect
    student = students[i]; //gooood
    if ((student.name.toLowerCase()) === search.toLowerCase()) { /*2. ok, here you wrapped 
student.name.toLowerCase() in parenthesis. Um... why? lol. Was it just a mistake or did you have 
a reason in mind for doing it? You know, maybe you thought you had to? Just curious*/
      message = getStudentReport( student );
      print (message);
    } else { //3. HERE is the kicker. This will ALWAYS fire with the way you have it written. Always. Even if we fix the next problem.
        alert('Sorry, no student matches the name ' + search);
        i = students.length +1; //DING DING DING. You just the iteration variable i to the exact length of the students array PLUS 1. When this gets back to the beginning of the for loop it's going to increment one more time and will automatically evaluate to false. This right here is forcing your for loop to run exactly ONE time if you search for anything other than the name of the very first student in the array.
    }
  }  

/*1. You never need to .toLowerCase() null. Null does not have the ability to be lower-cased
(it already is but that's not the point lol) or uppercased. It just is null. */
  if (search.toLowerCase() === 'quit' || search.toLowerCase() === null) {
   break; //lovely
  } 

var samMuir = {
    firstName:  "Sam",
    lastName: "Muir"
}

var samLowerCase = samMuir.toLowerCase();

 if ((student.name.toLowerCase()) === search.toLowerCase()) { /*2. ok, here you wrapped 
student.name.toLowerCase() in parenthesis. Um... why? lol. Was it just a mistake or did you have 
a reason in mind for doing it? You know, maybe you thought you had to? Just curious*/
      message = getStudentReport( student );
      print (message);
    }

else { //3. HERE is the kicker. This will ALWAYS fire with the way you have it written. Always. Even if we fix the next problem.
        alert('Sorry, no student matches the name ' + search);
        i = students.length +1; //DING DING DING. You just the iteration variable i to the exact length of the students array PLUS 1. When this gets back to the beginning of the for loop it's going to increment one more time and will automatically evaluate to false. This right here is forcing your for loop to run exactly ONE time if you search for anything other than the name of the very first student in the array.
    }

for (var i = 0; i < students.length; i += 1) { 
    student = students[i]; 

    if ((student.name.toLowerCase()) === search.toLowerCase()) { 

      message = getStudentReport( student );
      print (message);
    } else { 
        alert('Sorry, no student matches the name ' + search);
        i = students.length +1; 
    }

for (var i = 0; i < students.length; i += 1) { 
    student = students[i]; 

    if ((student.name.toLowerCase()) === search.toLowerCase()) { 

      message = getStudentReport( student );
      print (message);
    } else { 
        alert('Sorry, no student matches the name ' + search);
        i = students.length +1; 
    }

var message = "";
var student;
var search;
var students = [
  {
    name:"Mark",
    track: "Front End Web Development",
    points: 1345,
    achievements: "Butter Chops"
  },
  {
    name: "John",
    track: "IOS Fundamentals",
    points: 444,
    achievements: "Noob"
  },
  {
    name: "Bill",
    track: "Web Design",
    points: 45,
    achievements: "Tag you're it!"
  },
  {
    name: "Mark",
    track: "PHP Development",
    points: 687,
    achievements: "Space Cougar"
  },
  {
    name: "Susan",
    track: "Full Stack JavaScript",
    points: 1687,
    achievements: "Swiggity Swooty"    
  },
  {
    name: "Ling",
    track: "Rails Development",
    points: 3857,
    achievements: "Snuffleupagus"
  },
  {
    name: "Bill",
    track: "IOS Development",
    points: 2361,
    achievements: "Count Chocula"
  }
];

// Function to create message to print
function print(message) {
  var outputDiv = document.getElementById('output');
  outputDiv.innerHTML = message;
}

// Function which gets Student Report
function getStudentReport ( student ) {
 var report = '<div><h2>Student: ' + student.name + '</h2>';
  report += '<p>Track: ' + student.track + '</p>';
  report += '<p>Points: ' + student.points + '</p>';
  report += '<p>Achievements: ' + student.achievements + '</p></div>';
  return report;
}

/*fun little thing for when your search returns no results.*/
function noStudent(){
  var denied = "<h1><span id='warning'>No student for you!</span></h1>";
  print(denied);
}

// iterate over the array looking for the query string
while (true) {
   //initialize flag
    var found = 0; 

    search = prompt('Search student records: type a name [Jody] (or type "quit" to end)');


    if (search === null || search.toLowerCase() === 'quit' ) {
        break; 
    } else if (search === ""){ // restarts the loop if the user just hits enter or clicks OK without entering anything. Without it, you'll get the "sorry that student doesn't exist" alert.
        continue; //continue in a while loop skips everything below it and goes back to the condition at the beginning
    }

    search = search.toLowerCase(); 
    message = ""; 

    for (var i = 0; i < students.length; i += 1) {
        student = students[i];       

        if (student.name.toLowerCase() === search) {
            message += getStudentReport(student);
            found = 1; //flag set to true
        }
    } 
    if (!found){
        noStudent();
        alert("sorry, that student doesn't exist!");
    } else {      
        print(message);
    }
}