Perhaps you should try some spelling variations:
bulgarie » bulgarien, bulgaria, bulgarian, vulgarie, bulgariaie
bulgaricae » bulgarische, bulgaria, bulgarian, bulgariae, bulgariane, vulgaricae, bulgariaicae
vulgarian » bulgarian, bulgarians, vulgaridad
bulgarica » bulgaria, bulgarisch, bulgarian, vulgarica, bulgariaica
bulgar » vulgar, bulgaria
bulgare » vulgare, bulgariae, bulgarien, bulgaria
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: ((bulgarie OR (bulgaricae OR (vulgarian OR bulgarica))) OR ((bulgar OR bulgare) OR bulger)).
• Adding a wildcard symbol may retrieve word variants: ((bulgarie or (bulgaricae or (vulgarian or bulgarica))) or ((bulgar or bulgare) or bulger))*.