Perhaps you should try some spelling variations:
bulgariae » bulgaricae, bulgarian, bulgarians, bulgareiae, vulgariae
bulgarie » bulgarien, bulgarian, vulgaris, bulgareie, vulgarie
bulgaria » bulgareia, vulgaria
bulgar » bulgare, vulgar
bulgareian » bulgareeian, vulgareian, bulgarian, bulgarean, bulgarien
vulgarien » bulgarien, bulgariens, vulgarisee
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 bulgarie) OR bulgaria) OR ((bulgar OR (bulgareian OR vulgarien)) OR bulger))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(((bulgariae OR bulgarie) or bulgaria) or ((bulgar or (bulgareian or vulgarien)) or bulger))*".