This possible?

[MahdyE23]

I am trying to make it on my forum so the same thing cannot be suggested more than once and or if it does, people would be able to figure out that it's already been suggested. Is there maybe a mod that would search through all threads and posts in a matter of a few seconds upon posting, or similar to this concept that I can find? Or that someone can link me to?

Would be a great help.