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