equation-admin-template/ltr/assets/js/components/custom-search-multiple.js

Booststrap 4 admin template made by equation

$(function() {    
    $('#input-search').on('keyup', function() {
      var rex = new RegExp($(this).val(), 'i');
        $('.searchable-container .items').hide();
        $('.searchable-container .items').filter(function() {
            return rex.test($(this).text());
        }).show();
    });
});