Search checkboxlist item with jQuery by TEXT

I need to Search checkboxlist item with jQuery by TEXT of the Checkbox, not by Value.

Below code search by Value

    $(document).ready(function () {
    $("#maincontent_txtSearchTo").on("keyup", function () {
        debugger;
        var g = $(this).val().toLowerCase();
        $("#maincontent_chkQuestionTo tr td input").each(function () {
            var s = $(this).val().toLowerCase();
            $(this).parent().parent()[s.indexOf(g) !== -1 ? 'show' : 'hide']();
        });
    });
});

I need it to search by TEXT.

Please see below a sample of the generated code

    <input name="ctl00$maincontent$txtSearchTo" type="text" id="maincontent_txtSearchTo" Placeholder="Search..." />
    <table id="maincontent_chkQuestionTo">
    <tr>
        <td><input id="maincontent_chkQuestionTo_0" type="checkbox" name="ctl00$maincontent$chkQuestionTo$0" value="2057" />
<label for="maincontent_chkQuestionTo_0">What is money in finance?</label>
</td>
    </tr><tr>
        <td><input id="maincontent_chkQuestionTo_1" type="checkbox" name="ctl00$maincontent$chkQuestionTo$1" value="2058" />
<label for="maincontent_chkQuestionTo_1">What is Good?</label>
</td>
    </tr>
</table>

Grateful if you could help.

Many thanks

James