Perhaps you should try some spelling variations:
bulgariae » bulgaricae, bulgaria, bulgarian, vulgariae, bulgeriae, bulgariaiae
vulgaris » bulgaria, vulgar
bulgar » vulgar, bulger, bulgaria
bulgare » vulgare, bulgere, bulgariae, bulgarie, bulgarien
vulgarien » bulgarien, bulgariens, vulgarisee
bulgere » bulger, bilgere, burgere
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: ((bulgariae OR vulgaris) OR (((bulgar OR vulgarien) OR (bulgere OR bulgare)) OR bulges))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((bulgariae or vulgaris) or (((bulgar or vulgarien) or (bulgere OR bulgare)) or bulges))*".