Perhaps you should try some spelling variations:
vulgare » vulgaris, vulgarly
bulgaria » bulgareia, bulgeria, bulgarieia
bulgar » bulgare, bulger, bulgarie
bulgarieia » bulgareieia, bulgerieia, bulgarieieia, bulgariia, bulgarien, bulgarie

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: ((((vulgare OR bulgaria) OR vulgar) OR vulgar) OR (bulgar OR bulgarieia)).
• Adding a wildcard symbol may retrieve word variants: ((((vulgare or bulgaria) or vulgar) or vulgar) or (bulgar or bulgarieia))*.