Numbers of all words:
Two words phrases
Three words phrases
Here you can find chart of all your popular one, two and three word phrases. Google and others search engines means your page is about words you use frequently.
The domain is another important seo factor .You should pick easy to remember domain names, with no special characters and with a lenght no bigger than 76 chars. Search engines also consider that data hosted on subdomains is less important, so try to host your projects on domains, not subdomains. The TLD also matter, try to buy right TLDs, according to your site niche.