I agree, there`s something strange with the search function.
For example. If I type hjt or help using the search next to the todays posts button I get "Sorry - no matches. Please try some different terms." However, if I type the same thing into the main search box at the top of the page, I get the expected results.
I don`t however, get the same 200 results you seem to be getting.
I`m sure Julio will have an answer as to why this is happening. In the meantime, I suggest you use the main search box at the top of the page.