Let me five you some advices:
If you have problems/limits on searching, then try to google following: bitcointalk.org Your Search Subject and then just enter search. I think this will help you.
You can get upgraded by posting quality posts and ai guess it may be a little bit long term jurney as for now.
For how to use Search function efficiently, there you go:
[Tips] Guide for forum search I think that this one is useful and contains detailed steps for you to learn, and use forum search more efficiently.
Hope it helps!