Hi there, just found a three word keyphrase that according to Wordtraker search indicator of 500 is searched for quite a lot of times. The best thing is the .com of this keyphrase is available. Now the problem, when I check this particular keyphrase in Google Adwords it seems that it's not searched at all. And the truth is ?
Google and WT are using their own database with no relation what so ever. Thus, there might be a case where this kind of problem happens. It's just common sense.
Wordtracker uses Metacrawler and Dogpile data and not Google/Yahoo data so its not necessary that they should match. Also a three word search term's .com being available is quite common especially if the search count is low.