Perhaps you should try some spelling variations:
bulgariae » bulgaricae, bulgarians, bulgarien, bulgareiae, vulgariae, bulgeriae
bulgarian » hungarian, bulgareian, vulgarian, bulgerian
bulgarie » bulgarien, vulgaris, vulgare, bulgareie, vulgarie, bulgerie
bulgareicae » bulgaricae, bulgarica, bulgareeicae, vulgareicae, bulgereicae
vulgaria » vulgaris, vulgari, vulvaria
bulgaria » bulgareia, vulgaria, bulgeria
bulgar » bulgare, vulgar, bulger

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 (((bulgarie OR bulgaria) OR bulgareicae) OR vulgaria)) OR (bulgar OR bulge)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(((bulgariae or bulgarian) or (((bulgarie OR bulgaria) or bulgareicae) or vulgaria)) or (bulgar or bulge))".
• Adding a wildcard symbol may retrieve word variants: (((bulgariae or bulgarian) or (((bulgarie OR bulgaria) or bulgareicae) or vulgaria)) or (bulgar or bulge))*.