Perhaps you should try some spelling variations:
vulgaria » vulgaris, vulgari, vulvaria
bulgarie » bulgarien, vulgaris, vulgare, bulgareie, vulgarie, bulgerie
bulgarian » hungarian, bulgareian, vulgarian, bulgerian
bulgarica » bulgarisch, bulgarien, bulgareica, vulgarica, bulgerica
bulgaria » bulgareia, vulgaria, bulgeria
bulgar » bulgare, vulgar, bulger

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 vulgaria) OR (bulgarie OR (bulgarian OR bulgarica))) OR (bulgar OR bulge)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(((bulgaria OR vulgaria) or (bulgarie or (bulgarian or bulgarica))) or (bulgar or bulge))".
• Adding a wildcard symbol may retrieve word variants: (((bulgaria OR vulgaria) or (bulgarie or (bulgarian or bulgarica))) or (bulgar or bulge))*.