Perhaps you should try some spelling variations:
bulgarie » bulgarien, vulgaris, vulgare, bulgareie, vulgarie
bulgaricae » bulgarica, bulgarische, bulgaricus, bulgareicae, vulgaricae
bulgarian » hungarian, bulgareian, vulgarian
vulgarica » bulgarica, vulgaridad, vulgaris
bulgaria » bulgareia, vulgaria
bulgar » bulgare, vulgar
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: (((bulgarie OR bulgaria) OR (bulgaricae OR (bulgarian OR vulgarica))) OR (bulgar OR bulger)).
• Adding a wildcard symbol may retrieve word variants: (((bulgarie or bulgaria) or (bulgaricae or (bulgarian or vulgarica))) or (bulgar or bulger))*.