Not sure why this is a thing in all forums, but when you try to search a 3 letter or 2 letter term it's not included.
For example, I want to search "58" in the for sale forum, but I can't.
View attachment 100268
use google site specific search.
for example
site:www.mtbnj.com xxx
will find bontrager seat posts, and some porn
Can you put the forum url in the search ?