Search function doesn't work properly?

[mufjp]

I tried using the search function in the classified section, but it didn't seem to work as it should for a keyword less than 4 letters. For example, I wanted to search the keyword "iwc" but it didn't give me any results. Keywords 4 letters or longer work just fine. Is there any way to fix this?

Also, I noticed the PM inbox allows only 10 messages. Isn't this way too few for many people? Is there any way to "upgrade" my inbox for more storage?

Thanks!