this happens when multiple people search for that exact term, multiple times, from multiple / diverse IPs, over a longer period of time (I don't know the exact numbers, though)
The best way of achieving this that I can think of at the moment is via crowdsourcing sites like microworkers.com
This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
By continuing to use this site, you are consenting to our use of cookies.