Perhaps you should try some spelling variations:
bulgaars » bulgar
bulgarica » bulgaria, bulgarisch, bulgarian
vulgaria » bulgaria, vulgari, vulvaria
vulgaris » bulgaria, vulgar
bulgare » bulgarie, vulgare, bulgarien

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 (bulgarica OR (vulgaria OR vulgaris))) OR bulgare)*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((bulgaars or (bulgarica or (vulgaria OR vulgaris))) or bulgare)*".