SZCZUPACZKIEWICZ and KRAKUS surnames

Hello, I´ve been researching my ancestors for some time and since they apparently moved a lot it is pretty hard to come by any new information. The surnames that interest me are as the title reads Szczupaczkiewicz and Krakus, some of them lived in the vicinity of Lvov in Galicien and Warsaw. So if you happen to come across any of those two and read this post please let me know