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

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 vulgari))) OR bulgarie)*.