I found it first shot?
Simply went into Forced Induction. Top right corner, using the search "E85 Complete"
It's the first result when using last post, obviously because you've posted in it.
Or
If you use the other filters for example "title" instead of "last post time"... It's the 8th result, and would be the 8th result regardless of when the last post was in it. It shows up no problem without the need for advanced search!
Hate to say it but the search is working fine, you are just not looking at it correctly.