In the search, if you want to string search words together use the + sign between words without spaces
340+headers
You can also check the box that states
∆ Search titles only
You can also select in the drop down whether you want to search
Everywhere
Threads
This Forum
This Thread
If you go to the Advanced search, it allows you to sort results by date and not Relevance (which is the default)
If you use your browser "Back" button you can return to the results to check the next thread.
If you switch from the basic search to the Advanced Search, you'll have to re-enter the criteria again. It doesn't persist
I assumed you were not wanting to post a Wanted thread of your own
Good luck