When I try to type KOREAN in the search bar, Korean characters are segregated into vowel and consonant.

I want "가방" but it looks " ㄱ ㅏ ㅂ ㅏ ㅇ "
I am sorry I don't know about script, but

the scripts are as below :

<script type="text/javascript" class="init">

    $(document).ready(function() {
        // Setup - add a text input to each footer cell
        $('#search thead th').each( function () {
            var title = $(this).text();
            $(this).html( ''+title+' <br><input type="text" class="filter" placeholder="Search '+title+'" />' );
        } );

        // DataTable
        var table = $('#search').DataTable({
            responsive: true,


            initComplete: function () {
                // Apply the search
                this.api().columns().every( function () {
                    var that = this;
                    $( 'input', this.header() ).on( 'keyup change clear', function () {
                        if ( that.search() !== this.value ) {
                            that
                                .search( this.value )
                                .draw();
                        }
                    } );
                } );
            }
        });

        $('.filter').on('click', function(e){
            e.stopPropagation();
        });

        new $.fn.dataTable.FixedHeader( table );
        $("#search th.datepicker input").datepicker({
            format: "yyyy-mm-dd",

        });
    } );

</script>