It's all in how you search. You need to add as many applicable words as possible to your search string, but at the same time not eliminating stuff that you want to find. It's not easy and most of the time, you have to do a few different searches, b/c not everyone knows how to list their items to get the most hits either. For example, when I was looking for a tractor, I knew I wanted a 4x4, so I searched for '4x4 tractor'. But some list them as '4wd' or 'mfwd' or things like that. Unless the seller put all of these terms in the title, you will not necessarily find them. So I just do 3 different searches, each time pairing 'tractor' up with another term for 4x4. You can also save these searches in My eBay so you don't have to recreate it each time.
Another option is to use the advanced search. You can enter words to be eliminated from your search results, among other settings to narrow your search. In the above example, I would enter the word 'scale' in the words to eliminate, so that no toy tractors would be returned.
Sometimes though, you will just have to sift through hundreds of items. Frustrating, I know, but you may just find that diamond in the rough that no one else sees doing a search.
- Gerald