Perhaps you should try some spelling variations:
vulgariae » bulgariae, vulgarise, bulgaricae
bulgarien » bulgarian, vulgarien, bulgarieien
bulgarieia » bulgariia, bulgarie, bulgariens, vulgarieia, bulgarieieia
bulgaria » vulgaria, bulgarieia
bulgar » vulgar, bulgarie
bulgare » vulgare, bulgariee, bulgarie, 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: ((vulgariae OR (bulgarien OR (bulgaria OR bulgarieia))) OR ((bulgar OR bulgare) OR bulger))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((vulgariae or (bulgarien or (bulgaria OR bulgarieia))) or ((bulgar or bulgare) or bulger))*".