Perhaps you should try some spelling variations:
bulgariae » bulgaricae, bulgaria, bulgarie, bulgareiae, vulgariae, bulgeriae
bulgarian » bulgaria, bulgareian, vulgarian, bulgerian
bulgarica » bulgaria, bulgarisch, bulgarien, bulgareica, vulgarica, bulgerica
bulgar » bulgare, vulgar, bulger
bulges » bulge

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 hungarian) OR bulgarica)) OR (bulgar OR bulges)).
• Adding a wildcard symbol may retrieve word variants: ((bulgariae or ((bulgarian or hungarian) or bulgarica)) or (bulgar or bulges))*.