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

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