http://www.google.com/search?q=site%3Anews.ycombinator.com+y...
There's no other search.
There's no other search.
(edit: I'm not the one who voted you down)
If you remember some key words from the title, you can do a quick find in http://www.kirubakaran.com/phr0zen (snapshots of front page). It is not really search search but I find it useful all the time.