Perhaps you should try some spelling variations:
bulgariae » bulgarie, bulgarians, bulgarien, bulgareiae, vulgariae, bulgarieiae
bulgaricae » bulgarische, bulgarie, bulgarischen, bulgariene, bulgariee, bulgareicae, vulgaricae, bulgarieicae
bulgarian » hungarian, bulgareian, vulgarian, bulgarieian
bulgarica » bulgarisch, bulgarien, bulgarie, bulgareica, vulgarica, bulgarieica
bulgaria » bulgareia, vulgaria, bulgarieia
bulgar » bulgare, vulgar, bulgarie
vulgare » vulgar, vulgaris, vulgarly
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 (bulgaricae OR (bulgarian OR bulgarica))) OR ((bulgar OR vulgare) OR bulger)).
• Adding a wildcard symbol may retrieve word variants: (((bulgariae or bulgaria) or (bulgaricae or (bulgarian or bulgarica))) or ((bulgar or vulgare) or bulger))*.