Forum Search on this board can often be useful, but sometimes it is just a pile of manure.

For example, try this search:  set the keyword to "TV", matching criteria to "match all words".  Then set the author to "Adam", and author criteria to "Search for topics posted in by someone".

Set the board to just "Level Designing".

Leave the other settings to the default.  Now click Search.

The search says no results found, yet what about [u]this post[/u]?

How pathetic is that?  That's some seriously crappy searching.

It's YaBB, expect nothing great.  Invision is the way to go.