Error ColVis

I am automatically hiding field 5, 7 when I click to enable both the search field does not come together how to solve this? thank you

My Code

$(document).ready(function() {

  var advance = $('#advanced-table').DataTable( {
  dom: 'Blfrtip',
       columnDefs: [
        {
            targets: 1,
            className: 'noVis',
        },
        {

            "targets": [ 5 ],
            "visible": false,
            "searchable": true,
        },
        {
            "targets": [ 7 ],
            "visible": false,
            "searchable": true,
        }

    ],
buttons: {
    name: 'primary',

    buttons: [ 'copy', 'csv', 'excel', 'pdf', 'print', 'colvis'  ]
},




      //"language": {
            //"url": "http://cdn.datatables.net/plug-ins/1.10.13/i18n/Portuguese-Brasil.json"
       // }


} );

$(document).ready(function() {
$('a.toggle-vis').on('click', function (e) {
e.preventDefault();

    // table
    var table = $('#advanced-table').dataTable();

    // column
    var ColNum = $(this).attr('data-column');

    // Define
    var bVis = table.fnSettings().aoColumns[ColNum].bVisible;

    // Toggle
    table.fnSetColumnVis(ColNum, bVis ? false : true);

});

});

// Setup - add a text input to each footer cell
$('#advanced-table tfoot th').each( function () {
var title = $(this).text();
$(this).html( '

' );
} );
// Apply the search
advance.columns().every( function () {
var that = this;

    $( 'input', this.footer() ).on( 'keyup change', function () {
        if ( that.search() !== this.value ) {
            that
                .search( this.value )
                .draw();
        }
    } );
} );



} );