Google's Keyword tool is miss leading.

Another skill to SEO is knowing a good keyword source, using Google’s Keyword Tool can harm your campaign. Google uses the value of the word as well as the times search so can mislead your word placement. I will give you a few examples. Lets search using Google’s Keyword Tool and target the term as “SEO Coventry” now you will see the search count Local is there. Now search for Coventry SEO, the times searched is identical but because Google rates the word SEO less than Coventry it tell us that the search term Coventry SEO is the stronger term, but actually it’s not, the search term people are actually searching for is SEO Coventry. We have done a study to confirm this. You can see how this could harm your search and if your competitors are armed with the knowledge on search engine optimisation we (SEO Go) have, then that is one term you are losing to your competition.