Perhaps you should try some spelling variations:
vulgariae » bulgariae, vulgarise, bulgaricae
bulgarie » bulgarien, bulgarian, vulgaris, bulgareie, vulgarie
bulgariaie » bulgariae, bulgarian, bulgarians, bulgareiaie, vulgariaie
bulgarisch » bulgarische, bulgarischen, bulgareisch, vulgarisch
bulgaria » bulgareia, vulgaria
bulgar » bulgare, vulgar
bulger » bulge, bulges

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: ((vulgariae OR ((bulgarie OR bulgariaie) OR (bulgaria OR bulgarisch))) OR (bulgar OR bulger)).
• Adding a wildcard symbol may retrieve word variants: ((vulgariae or ((bulgarie or bulgariaie) or (bulgaria or bulgarisch))) or (bulgar or bulger))*.