Jquery Search Suggestion On Checkbox

I'm just a beginner in jquery. I want to make a search suggestion for checkbox.

I have this piece of code that suggests searches based on labels

function studentFunction() {
   var input, filter, form, label, a, i;
   input = document.getElementById("studentInput");
   filter = input.value.toUpperCase();
   form = document.getElementById("studentUL");
   label = form.getElementsByTagName("label");
   for (i = 0; i < label.length; i++) {
       a = label[i].getElementsByTagName("a")[0];
       if (a.innerHTML.toUpperCase().indexOf(filter) > -1) {
           label[i].style.display = "";
       } else {
           label[i].style.display = "none";

              }
    }
 }

I have this piece of code that prints out the checkbox from php to HTML

    echo"<input type=\"checkbox\" name=\"check_list[]\" value=\"{$row['UserIndex']} class=\"studentUL\"\"><label><a>{$row['LName']}, {$row['FName']}, {$row['Year']}</a></label>";

If I search, it displays this If i don't search anything, it displays this

Thanks for your help :)