Perhaps you should try some spelling variations:
bulgarie » bulgarien, bulgarian, vulgaris, vulgarie
bulgareicae » bulgaricae, bulgariae, vulgareicae, bulgarienicae, vulgaresicae
bulgarica » bulgarisch, bulgarian, bulgarien, vulgarica
bulgaria » vulgaria
bulgar » vulgar
bulgare » vulgare, bulgarien, vulgares
bulger » 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 (bulgareicae OR (bulgaria OR bulgarica))) OR (((bulgar OR bulger) OR bulgare) OR bulge)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((bulgarie or (bulgareicae or (bulgaria or bulgarica))) or (((bulgar OR bulger) or bulgare) or bulge))".
• Adding a wildcard symbol may retrieve word variants: ((bulgarie or (bulgareicae or (bulgaria or bulgarica))) or (((bulgar OR bulger) or bulgare) or bulge))*.