i want individual column search by select input exact on coloumn name not in top or bottom of tabl

<script>
  $(document).ready(function() {
    
      $('#myTable').dataTable({
              dom: 'Bfrtip',
          buttons: [
             
             'excelHtml5',

          {
 extend: 'pdfHtml5',
                orientation: 'landscape',
                pageSize: 'LEGAL'
           } 
         
          ],
            initComplete: function () {
            this.api().columns().every( function () {
                var column = this;
                var select = $('<select><option value=""></option></select>')
                    .appendTo( $(column.footer()).empty() )
                    .on( 'change', function () {
                        var val = $.fn.dataTable.util.escapeRegex(
                            $(this).val()
                        );
 
                        column
                            .search( val ? '^'+val+'$' : '', true, false )
                            .draw();
                    } );
 
                column.data().unique().sort().each( function ( d, j ) {
                    select.append( '<option value="'+d+'">'+d+'</option>' )
                } );
            } );
        }
      });
  });
</script>

EDIT: Updated code formatting using Markdown