JSFiddle - React, Tailwind, and code Playground

HTML

<link rel="stylesheet" href="//maxcdn.bootstrapcdn.com/bootstrap/3.2.0/css/bootstrap.min.css">
<script src="//maxcdn.bootstrapcdn.com/bootstrap/3.2.0/js/bootstrap.min.js"></script>
<div class="row">
        <div class="col-md-3 col-md-offset-3">
          <label for="Provincie">Provincie:</label> 
          <select name="selProvincie" class="keuze form-control" id="Provincie">
              <option value="">Alle provincies</option>
              <option value="drenthe">Drenthe</option>
              <option value="flevoland">Flevoland</option>
              <option value="gelderland">Gelderland</option>
              <option value="groningen">Groningen</option>
              <option value="limburg">Limburg</option>
              <option value="nbrabant">Noord-Brabant</option>
              <option value="nholland">Noord-Holland</option>
              <option value="overijssel">Overijssel</option>
              <option value="utrecht">Utrecht</option>
              <option value="zeeland">Zeeland</option>
              <option value="zholland">Zuid-Holland</option>
          </select>
        </div>


        <div class="col-md-3">
          <p>
          <label for="merkAuto">Merk auto:</label>
          <select name="selmerkAuto" class="keuze form-control" id="merkAuto">
              <option value="">Alle merken</option>
              <option value="audi">Audi</option>
              <option value="volkswagen">Volkswagen</option>
          </select>
          </p>
        </div>
      </div>
    <!--VERKOOP-->
    <div class="rowbod">
        <div class="col-md-4">
         <h3>Verkoop</h3>
         <table class="table table-condensed">
          <tr class="item audi bmw volvo nholland">
            <td><a href="#">Autohan</a></td>
            <td>Zwanenburg</td>
          </tr>
          <tr class="item audi bmw lexus mercedes vw volvo nbrabant">
            <td><a href="#">Auto Timon</a></td>
            <td>Uden</td>
          </tr>
          <tr class="item...

CSS

/*!
 * Bootstrap v3.0.3 (http://getbootstrap.com)
 * Copyright 2013 Twitter, Inc.
 * Licensed under http://www.apache.org/licenses/LICENSE-2.0
 */

/*! normalize.css v2.1.3 | MIT License | git.io/normalize */

article,
aside,
details,
figcaption,
figure,
footer,
header,
hgroup,
main,
nav,
section,
summary {
  display: block;
}

audio,
canvas,
video {
  display: inline-block;
}

audio:not([controls]) {
  display: none;
  height: 0;
}

[hidden],
template {
  display: none;
}

html {
  font-family: sans-serif;
  -webkit-text-size-adjust: 100%;
      -ms-text-size-adjust: 100%;
}

body {
  margin: 0;
}

a {
  background: transparent;
}

a:focus {
  outline: thin dotted;
}

a:active,
a:hover {
  outline: 0;
}

h1 {
  margin: 0.67em 0;
  font-size: 2em;
}

abbr[title] {
  border-bottom: 1px dotted;
}

b,
strong {
  font-weight: bold;
}

dfn {
  font-style: italic;
}

hr {
  height: 0;
  -moz-box-sizing: content-box;
       box-sizing: content-box;
}

mark {
  color: #000;
  background: #ff0;
}

code,
kbd,
pre,
samp {
  font-family: monospace, serif;
  font-size: 1em;
}

pre {
  white-space: pre-wrap;
}

q {
  quotes: "\201C" "\201D" "\2018" "\2019";
}

small {
  font-size: 80%;
}

sub,
sup {
  position: relative;
  font-size: 75%;
  line-height: 0;
  vertical-align: baseline;
}

sup {
  top: -0.5em;
}

sub {
  bottom: -0.25em;
}

img {
  border: 0;
}

svg:not(:root) {
  overflow: hidden;
}

figure {
  margin: 0;
}

fieldset {
  padding: 0.35em 0.625em 0.75em;
  margin: 0 2px;
  border: 1px solid #c0c0c0;
}

legend {
  padding: 0;
  border: 0;
}

button,
input,
select,
textarea {
  margin: 0;
  font-family: inherit;
  font-size: 100%;
}

button,
input {
  line-height: normal;
}

button,
select {
  text-transform: none;
}

button,
html input[type="button"],
input[type="reset"],
input[type="submit"] {
  cursor: pointer;
  -webkit-appearance: button;
}

button[disabled],
html input[disabled] {
  cursor: default;
}

input[type="checkbox"],
input[type="radio"] {
  padding:...

JavaScript

$(document).ready(function () {
      $('select.keuze').change(function () {
          var Provincie = $("#Provincie").val() || "item",
              merkAuto = $("#merkAuto").val()  || "item";      
          $(".item").hide().filter(function() {            
             return $(this).hasClass(Provincie) && $(this).hasClass(merkAuto);
          }).show();
          
          $(".col-md-4").show().filter(function() {            
             return $(this).find("tr:visible").length == 0;
          }).hide();
      });
     
});