Perhaps you should try some spelling variations:
bulgariae » bulgaricae, bulgarie, bulgarians, vulgariae, bulgeriae, bulgarieiae
bulgarian » hungarian, vulgarian, bulgerian, bulgarieian
bulgeriae » bulgaricae, bulgarie, bulweria
bulgar » vulgar, bulger, bulgarie
bulgaria » vulgaria, bulgeria, bulgarieia
bulgare » vulgare, bulgere, bulgariee, bulgarie, 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: (((bulgariae OR bulgarian) OR bulgeriae) OR ((bulgar OR bulgaria) OR bulgare)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(((bulgariae OR bulgarian) or bulgeriae) or ((bulgar or bulgaria) or bulgare))".
• Adding a wildcard symbol may retrieve word variants: (((bulgariae OR bulgarian) or bulgeriae) or ((bulgar or bulgaria) or bulgare))*.