Perhaps you should try some spelling variations:
bulgarie » bulgarien, bulgarian, vulgare, bulgareie, vulgarie, bulgerie
vulgaris » vulgar
bulgareiae » bulgariae, bulgarian, bulgaricae, bulgareeiae, vulgareiae, bulgereiae
bulgarica » bulgarisch, bulgarian, bulgarien, bulgareica, vulgarica, bulgerica
bulgaria » bulgareia, vulgaria, bulgeria
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: ((((bulgaria OR (bulgarie OR vulgaris)) OR bulgareiae) OR bulgarica) OR (bulgar OR bulges)).
• Adding a wildcard symbol may retrieve word variants: ((((bulgaria or (bulgarie or vulgaris)) or bulgareiae) or bulgarica) or (bulgar or bulges))*.