Jquery dropdown multiple filter

Jquery dropdown multiple filter

Hello looking for some help with jquery multiple filter. I have done some filter, where I can show data from select option, and hide which value not selected. But its not working properly, when I do select for 3 different options, It shows me also incorrect data. Example I have selected Non active user, and when I select user position Programmer its shows me all programmerms even they are not active, here is my script, maybe someone can help to update it?  

function filterText()
{
        var rex = new RegExp($('#filterText').val());

        if(rex =="/all/"){clearFilter()}else{
            $('.content').hide();
            $('.content').filter(function() {
                return rex.test($(this).text());
            }).show();
        }
    }

    function clearFilter()
    {
        $('.filterText').val('');
        $('.filterText2').val('');
        $('.filterText3').val('');
        $('.filterText4').val('');
        $('.content').show();
    }

    function filterText2() {
        var rex2 = new RegExp($('#filterText2').val());

        if (rex2 == "/all/") {
            clearFilter()
        } else {
            $('.content').hide();
            $('.content').filter(function () {
                return rex2.test($(this).text());
            }).show();
        }
    }

    function filterText3() {
        var rex3 = new RegExp($('#filterText3').val());

        if (rex3 == "/all/") {
            clearFilter()
        } else {
            $('.content').hide();
            $('.content').filter(function () {
                return rex3.test($(this).text());
            }).show();
        }
    }

    function filterText4() {
        var rex4 = new RegExp($('#filterText4').val());

        if (rex4 == "/all/") {
            clearFilter()
        } else {
            $('.content').hide();
            $('.content').filter(function () {
                return rex4.test($(this).text());
            }).show();
        }
    }