title: Mongodb should search in a part of string
body: <p>I am using mongodb full text search - I have a string "Vipul" in my database and I am searching "vip" but its not getting records related to search.</p>
  
  <p>It is asking full text like "Vipul", and I want to create autocomplete functionality in mongodb like google or any search engine.
  I am using nodejs on server side.</p>
  
  <p>Please help me out from this problem.</p>
  
  <p>Thanks</p>