The forum search only searches the text of the original starting post of a thread. Due to a database hiccup about a year and a half ago, older ones are all not found at all using this method.
I use Google's specific site search feature instead. Type "site:planets.nu" and then whatever you want to search for in the Google search box.
While I'm at it... for searching Documentation only, you use the built-in Google search box at http://help.planets.nu |