Perhaps you should try some spelling variations:
bulgariae » bulgaricae, bulgarians, bulgarien
bulgarie » bulgarien, vulgaris, vulgare
bulgarian » hungarian
vulgarian » bulgarians, vulgaridad, hungarian
bulgariaica » bulgarica, bulgariia
bulgare » vulgare, bulgarien, vulgares
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 (bulgarie OR ((bulgarian OR vulgarian) OR bulgariaica))) OR ((bulgaria OR bulgare) OR bulger)).
• Adding a wildcard symbol may retrieve word variants: ((bulgariae or (bulgarie or ((bulgarian or vulgarian) or bulgariaica))) or ((bulgaria or bulgare) or bulger))*.