Perhaps you should try some spelling variations:
bulgariae » bulgarie, bulgarians, bulgarien, bulgareiae, vulgariae, bulgarieiae
bulgarian » hungarian, bulgareian, vulgarian, bulgarieian
bulgaricae » bulgarica, bulgarische, bulgarie, bulgareicae, vulgaricae, bulgarieicae
bulgaria » bulgareia, vulgaria, bulgarieia
bulgar » bulgare, vulgar, bulgarie
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 (bulgaricae OR bulgaria)) OR (bulgar OR bulger))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(((bulgariae or bulgarian) or (bulgaricae OR bulgaria)) or (bulgar or bulger))*".