Hi, unfortunately, I don't think there is a connection. Our Hrabczak/Hrapchak's come from Lanowce, Borshchiv, Ternopil, Western Ukraine. It use to be eastern Galicia years ago.
We are still trying to find birth records for my great-grandparents and until then, we will not know if there is a connection to the Hrabczak's in Leluchow.
Good luck in your search.