[vietfancy]

Originally Posted by RS25com

I used that version but it always returns no results found.

I upgraded to 3.7.3 and it still doesn't work.

Same thing happened to me, But then when i changed the hook in "Similar thread check - newthread.php" from newthread_form_complete to newthread_form_start

it works great:

here is how you're going to do it:
Plugins & Products --> Plugin Manager --> search for Similar thread check - newthread.php
--> edit it by change the hook location to newthread_form_start

You're done!