Perhaps you should try some spelling variations:
vulgaria » vulgaris, vulgari, vulvaria
bulgerie » bulgarien, bulgariae, algerie
bulgaria » vulgaria, bulgeria
bulgar » vulgar, bulger
bulgare » vulgare, bulgere, bulgarien, vulgares
bulgarie » vulgarie, bulgerie, bulgarien, bulgarian, vulgaris
vulgare » vulgar, vulgaris, vulgarly

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