Perhaps you should try some spelling variations:
bulgariae » bulgaricae, bulgaria, bulgarie, bulgareiae, vulgariae, bulgariaiae
bulgarian » bulgaria, hungarian, bulgareian, vulgarian, bulgariaian
bulgareia » bulgaria, bulgariia, bulgarie, bulgareeia, vulgareia, bulgariaeia
bulgar » bulgare, vulgar, bulgaria
bulgarien » bulgareien, vulgarien, bulgariaien, bulgaria
vulgarien » bulgariens, vulgarisee, vulgarises
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 bulgareia) OR ((bulgar OR (bulgarien OR vulgarien)) OR bulger))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(((bulgariae OR bulgarian) or bulgareia) or ((bulgar or (bulgarien or vulgarien)) or bulger))*".