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