Perhaps you should try some spelling variations:
bulgariae » bulgaricae, bulgaria, bulgarie, bulgareiae, vulgariae, bulgariaiae
bulgariaian » bulgariia, bulgareiaian, vulgariaian, bulgariaiaian
bulgarian » bulgaria, bulgareian, vulgarian, bulgariaian
bulgar » bulgare, vulgar, bulgaria
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 ((bulgariaian OR hungarian) OR bulgarian)) OR (bulgar OR bulger)).
• Adding a wildcard symbol may retrieve word variants: ((bulgariae or ((bulgariaian or hungarian) or bulgarian)) or (bulgar or bulger))*.