title: Django: Slug in Vietnamese
body: <p>A site in Vietnamese, it is virtually no different to English. However, there is a problem that is slug. When I type characters such as "ư", "ơ", "á",... Django is not identified. Solution here is to replace characters that do not sign into. 
  Eg: </p>
  
  <pre><code>ư -&gt; u 
  ơ -&gt; o 
  á -&gt; a 
  </code></pre>
  
  <p>One from "những-viên-kẹo" will become "nhung-vien-keo". 
  However, I do not know how to do this. Someone help me. Thank you very much!</p>