Perhaps you should try some spelling variations:
bulgariae » bulgaria, bulgarie, bulgarians, bulgareiae, vulgariae, bulgariaiae
bulgaricae » bulgarica, bulgarische, bulgaria, bulgareicae, vulgaricae, bulgariaicae
bulgarian » bulgaria, hungarian, bulgareian, vulgarian, bulgariaian
bulgarien » bulgaria, bulgareien, vulgarien, bulgariaien
bulgar » bulgare, vulgar, bulgaria
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 (bulgaricae OR (bulgarian OR bulgarien))) OR ((bulgar OR vulgare) OR bulger)).
• Adding a wildcard symbol may retrieve word variants: ((bulgariae or (bulgaricae or (bulgarian or bulgarien))) or ((bulgar or vulgare) or bulger))*.