Perhaps you should try some spelling variations:
bulgareiae » bulgariae, bulgarian, bulgaricae, vulgareiae, bulgereiae, bulgarieniae, vulgaresiae
bulgar » vulgar, bulger
bulgare » vulgare, bulgere, bulgarien, vulgares
bulgaria » vulgaria, bulgeria
bulgarie » vulgarie, bulgerie, bulgarien, bulgarian, vulgaris

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