title: MySQL find_in_set with multiple search string
body: <p>I find that <strong>find_in_set</strong> only search by a single string :- </p>
  
  <pre><code>find_in_set('a', 'a,b,c,d')
  </code></pre>
  
  <p>In the above example, 'a' is the only string used for search.</p>
  
  <p>Is there any way to use find_in_set kind of functionality and search by multiple strings, like :- </p>
  
  <pre><code>find_in_set('a,b,c', 'a,b,c,d')
  </code></pre>
  
  <p>In the above example, I want to search by three strings 'a,b,c'.</p>
  
  <p>One way I see is using <strong>OR</strong></p>
  
  <pre><code>find_in_set('a', 'a,b,c,d') OR find_in_set('b', 'a,b,c,d') OR find_in_set('b', 'a,b,c,d')
  </code></pre>
  
  <p>Is there any other way than this?</p>