Perhaps you should try some spelling variations:
bulgare » bulgarie, bulgarien, bulgaria, vulgare, bulgere, bulgariae
bulgeriae » bulgariae, bulgaricae, bulgaria
vulgare » vulgar, vulgaris, vulgarly
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: (((bulgare OR bulgeriae) OR vulgare) OR bulgar).
• Adding a wildcard symbol may retrieve word variants: (((bulgare or bulgeriae) or vulgare) or bulgar)*.