I sell vintage glass. Although I haven't listed anything for a while I've found that since the new categories arrived the problem you're finding has always been the case. Trying to get ebays suggestions to show me the category that I want to list in has always been pretty hit and miss.
I think that, although the title is used for (say) "bowls" the suggestions offered were based as much on which categories had been used most by other sellers. It can be hard work to get anything but the most commonly used categories out of ebay as suggestions.
For example, trying to list a Trinket Bowl from a dressing table set all ebay's suggestions are based on the Home & Garden >Decorative Cookware / Tableware category.
What I wanted was (something like) Pottery, Porcelain & Glass > Collectables > Trays & Sets.
I found that the easiest way round this was to lie when asked "What are you Selling". I'd type "Glass Dressing Table Tray" to get Trays & Sets as a suggestion, then change my title later on the listing form.