Try entering a search keyword first, searching, and then selecting the category you want to see from the category tree on the left side of the search results page if you are using a desktop browser. You may need to drill down the categories to reach a subcategory.
Then bookmark or save the search so you can reuse the search without having to go through all that again.
If you are not sure what keywords to use, or if you want to see an entire category, try searching using the category name as your search keywords.
https://www.ebay.co.uk/sch/37941/i.html?_nkw=antique+woodenware&_sop=10