Perhaps you should try some spelling variations:
bulgariae » bulgaricae, bulgarians, bulgarien, bulgareiae, vulgariae
bulgariene » bulgarien, bulgariens, bulgarians, bulgareiene, vulgariene, bulgarienne, vulgarisne, vulgarene
bulgarian » hungarian, bulgareian, vulgarian
bulgarica » bulgarisch, bulgarien, bulgareica, vulgarica
bulgar » bulgare, vulgar
bulgarie » bulgareie, vulgarie, bulgarien, vulgaris, vulgare
bulgaria » bulgareia, vulgaria
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 (bulgariene OR (bulgarian OR bulgarica))) OR (((bulgar OR bulgarie) OR bulgaria) OR bulger)).
• Adding a wildcard symbol may retrieve word variants: ((bulgariae or (bulgariene or (bulgarian or bulgarica))) or (((bulgar or bulgarie) or bulgaria) or bulger))*.