Perhaps you should try some spelling variations:
bulgeriae » bulgariae, bulgaricae, bulgaria
bulgareie » bulgarie, bulgaria, bulgarien, bulgareeie, vulgareie, bulgereie
bulgareiae » bulgariae, bulgaria, bulgarian, bulgareeiae, vulgareiae, bulgereiae
bulgerische » bulgarische, bulgarischen, bulgarischer
bulgar » bulgare, vulgar, bulger
bulges » bulge

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: ((((bulgeriae OR bulgareie) OR bulgareiae) OR bulgerische) OR (bulgar OR bulges)).
• Adding a wildcard symbol may retrieve word variants: ((((bulgeriae or bulgareie) or bulgareiae) or bulgerische) or (bulgar or bulges))*.