Perhaps you should try some spelling variations:
bulgariae » bulgaricae, bulgaria, bulgarie, vulgariae, bulgariaiae, bulgarieiae
bulgarian » bulgaria, hungarian, vulgarian, bulgariaian, bulgarieian
bulgeriae » bulgaricae, bulgaria, bulgarie, bulgeiae, bulgesiae
bulgar » vulgar, bulgaria, bulgarie
bulgarieia » vulgarieia, bulgariaieia, bulgarieieia, bulgariia, bulgaria, bulgarien
bulgare » vulgare, bulgariae, bulgariee, bulgarie, bulgarien
bulger » bulge, bulges

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