eBay is not here; this is a user forum.
eBay provides some options to let you narrow your search and avoid the things you are not interested in.
If you are searching by just entering keywords into the search bar, you are only scratching the surface of what eBay's search can do. If you want, eBay will find listings that contain all your keywords in the title or item specifics, even if they are just parts for the machines you are actually looking for.
You can avoid some of the parts listings by changing the category to one of the coffee machine categories and not including the parts categories in your search.
Some sellers may list parts in the wrong category, though, so that is not foolproof.
You can set a price floor to filter out anything less than the lowest cost machine you are interested in. If you have few results, you can try sorting the price by highest first and scrolling down through the listings to avoid the most inexpensive results.
Using category-specific filter options can also weed out many listings that those options do not apply to.
You can try adding additional keywords, grouping keywords together with dashes to make sure they appear in order, or even excluding certain keywords (like -parts or -replacement, for instance).
One possible search for filter coffee machines with great in the title or item-specifics:
https://www.ebay.com/sch/184665/i.html?_nkw=coffee-machine+great&_sop=15
You should consider other keywords if you are looking for a machine in "great condition", as not every seller describes their machine in that specific way.
