Perhaps you should try some spelling variations:
bulgariae » bulgaricae, bulgaria, bulgarian, bulgareiae, vulgariae, bulgeriae
bulgareiae » bulgaria, bulgarian, bulgarie, bulgareeiae, vulgareiae, bulgereiae
bulgeria » bulgaria, bulweria, bulgarian
bulgarien » bulgarian, bulgaria, bulgareien, vulgarien, bulgerien
bulgar » bulgare, vulgar, bulger
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 bulgareiae) OR (bulgeria OR bulgarien)) OR (bulgar OR bulges)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(((bulgariae OR bulgareiae) or (bulgeria or bulgarien)) or (bulgar or bulges))".
• Adding a wildcard symbol may retrieve word variants: (((bulgariae OR bulgareiae) or (bulgeria or bulgarien)) or (bulgar or bulges))*.