Forum search - advanced options

I have tried to browse and search the forum, but I can't find a info page wich describes the advanced search functions.

So I know these functions:

"this is a sentence"

keyword1 +keyword2 +keyword3 etc...

m3** or CLK* to avoid the blocking of minimum 3 letter searches

I guess there are more search options, but can someone who knows please tell me, or show me where I can find them?