I'm a Spiwak/Spivak actually.  Finding our roots in Ukraine is tricky.  Especially since the geography and history changes have given multiple names to everything.  And most are not available on the internet. You maybe find them on old maps, but you know where the village/town/city was before you'll find it with ease.  If you don't know where it was, you'll spend days combing thru all the names on the map.

If you want, message me privately and maybe I can help you some. I have lots of things bookmarked and might be able to help you dig in my spare time. :)

Christina Spiwak/Spivak