Perhaps you should try some spelling variations:
bulgariaiae » bulgaricae, bulgariae, bulgariia, bulgareiaiae
bulgar » bulgare
bulgaria » bulgareia
bulgarie » bulgareie, bulgarien, bulgarian, vulgaris
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: (bulgariaiae OR ((((bulgar OR bulger) OR bulgaria) OR vulgar) OR bulgarie)).
• Adding a wildcard symbol may retrieve word variants: (bulgariaiae or ((((bulgar or bulger) or bulgaria) or vulgar) or bulgarie))*.