title: How to write a mongo query that returns fields with the expected results?
body: <p>For instance I am trying to bring up the organization ids that are tagged to multiple countries in db.</p>
  <pre><code> db.collection.find({&quot;Region&quot;:{$in:[&quot;CHINA&quot;,&quot;JAPAN&quot;,&quot;SOUTH_KOREA&quot;]}}) 
  </code></pre>
  <p>this doesnot give me the results that they have all 3 countries in the same document. Obviously $where does not work which I can query to bring up the fields that have more than 1 country in it.</p>
  <p>Trying this for 2 days and need your help.</p>
  <p>Thanks in advance.</p>