When I try to find a forum discussion using one of the words of its title "wiki", it is not found.
Then, I change for one word "books" of its content, then I can find it:
Wiki stub: Make your own compiler, interpreter, parser, or expression analyzer
http://forum.lazarus.freepascal.org/index.php/topic,42556.msg308894.html#msg308894Please, see the attached images.
What is the difference between the two words' search according to forum search criteria?