title: MongoDb text search doesn't return a result
body: <p>I have the following query </p>
  
  <pre><code>db.Profiles.find({  "$text" : { "$search" : "vk" } })
  </code></pre>
  
  <p>It gives me the following result</p>
  
  <pre><code>{
      "_id" : ObjectId("55e999a5bd1f3926586799bb"),
      "created" : ISODate("2015-09-04T13:16:21.555Z"),
      "userId" : 4790,
      "email" : "vk@mydomain.com",
      "firstName" : "",
      "lastName" : "",
      "phoneNumber" : "",
      "isUnsubscribed" : false,
      "isAboveLimit" : true,
      "status" : 0,
      "userAgent" : 0,
      "isDeleted" : false,
      "p2l" : [ 
        {
              "listId" : 31613,
              "status" : 25,
              "subscriptionDate" : ISODate("2015-09-17T14:04:33.660Z")
          }
      ],
      "countryId" : 0,
      "cf" : []
  }
  </code></pre>
  
  <p>But the following does not</p>
  
  <pre><code>db.Profiles.find({  "$text" : { "$search" : "v" }})
  </code></pre>
  
  <p>There are not results.</p>