This is what I tried
telnet www.google.com 80 Get HTTP/1.1 Host:www.google.com
This I what I receive back
HTTP/1.0 400 Bad
After issuing the request:
GET / HTTP/1.1
you also need input an empty line to show that your request has ended, otherwise, nothing will be returned.
Reference: http://blog.nullspace.io/day-208.html