Perhaps you should try some spelling variations:
bulgarie » bulgarian, vulgaris, vulgare, vulgarie, bulgerie
bulgarien » bulgariann, vulgarisn, vulgaren, bulgarian, vulgarien, bulgerien
bulgaricae » bulgarica, bulgarische, bulgarian, vulgaricae, bulgericae
bulgaria » vulgaria, bulgeria
bulgar » vulgar, bulger
bulgare » vulgare, bulgere, vulgares
bulges » bulge

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 (bulgaricae OR (bulgaria OR bulgarien))) OR ((bulgar OR bulgare) OR bulges)).
• Adding a wildcard symbol may retrieve word variants: ((bulgarie or (bulgaricae or (bulgaria or bulgarien))) or ((bulgar or bulgare) or bulges))*.