title: select2 multiple search keyword
body: <p>with select2 plugins is it possible to use multiple search keyword for 1 value  </p>
  
  <p>Example: </p>
  
  <pre><code>&lt;select&gt;
    &lt;option data-en="Englisch" data-ar="الإنجليزية" data-cn="英语" data-de="Englisch"  value="AL"&gt;English&lt;/option&gt;
    &lt;option data-en="arabic" data-ar="عربى" data-cn="阿拉伯" data-de="Arabisch"  value="AL"&gt;arabic&lt;/option&gt;
    &lt;option data-en="Chinese" data-ar="صينى" data-cn="中文" data-de="Chinesisch"  value="AL"&gt;Chinese&lt;/option&gt;
  &lt;/select&gt;
  </code></pre>
  
  <p>In search filed if you search in any language (from value or data-attribute) it will show the result</p>
  
  <p>Expected Result: </p>
  
  <p><a href="https://i.stack.imgur.com/OTN3K.png" rel="nofollow noreferrer">Check This Screenshot</a></p>