I need some advice on naming directory/pages please

[Fido]

Just a little clarification, allinurl: command returns only those results, where URL of the page contains searched keyword. So if you search for allinanchor:sexy brunette, Goolge will return URLs containing sexy brunette and most of them (if not all) on the top positions are URLs, where these two words sexy and brunette are separated by hyphen. Natalie notice, that I did not search for sexy-brunette, but for sexy brunette, such as a normal surfer does and Google itself decided, that URLS with hyphens are most appropriate to my search.

Not separated words sounds to me like the worst version of URL.

Insider's opinion:

Originally Posted by GoogleGuy

If you use an underscore '_' character, then Google will combine the two words on either side into one word. So bla.com/kw1_kw2.html wouldn't show up by itself for kw1 or kw2. You'd have to search for kw1_kw2 as a query term to bring up that page.