There is something weird going on with my site, perhaps it's in this "sandbox". I've launched this weekend and I'm trying to rank it for a 4 word expression... perhaps I'm trying too hard? I've put it in url, title and H1 tag, and been building dofollow backlinks with this expression. My site is nowhere to be found when searching in Google, however it's ranking high for small variations of the expression, like adding a couple words to it.
Thanks to Nemanja for the tips.