Perhaps you should try some spelling variations:
bulgariae » bulgaricae, bulgarians, bulgarien, bulgareiae, vulgariae
bulgarian » hungarian, bulgareian, vulgarian
bulgareia » bulgariia, bulgare, bulgarica, bulgareeia, vulgareia
bulgarie » bulgarien, vulgaris, vulgare, bulgareie, vulgarie
bulgaria » bulgareia, vulgaria
bulgar » bulgare, vulgar
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 bulgaria) OR bulgarian) OR (bulgareia OR bulgarie)) OR (bulgar OR bulger))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((bulgariae OR bulgaria) or bulgarian) or (bulgareia or bulgarie)) or (bulgar or bulger))*".