It looks too bad.
For example, I just want to search the keyword "git", and select the user by "ollydbg", I get no results.
In this case, Google gives more good results, I just want to search my own post, by something like:
"git log -S" ollydbg site:forums.next.codeblocks.org
Then, Google can find only one result, and it is what I wanted, nice!