Perhaps you should try some spelling variations:
bulgariae » bulgaricae, bulgarian, bulgarie, bulgareiae, vulgariae, bulgeriae
vulgariae » vulgarise, bulgaricae, vulgaridad
bulgarischen » ungarischen, bulgarien, ungarische, bulgareischen, vulgarischen, bulgerischen
vulgarian » bulgarian, bulgarians, vulgaridad
bulgaria » bulgareia, vulgaria, bulgeria
bulgar » bulgare, vulgar, bulger
bulgariee » bulgareiee, vulgariee, bulgeriee, bulgarien, bulgarie, bulgariens

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 vulgariae) OR (bulgarischen OR (vulgarian OR bulgaria))) OR ((bulgar OR bulgariee) OR bulge)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(((bulgariae OR vulgariae) or (bulgarischen or (vulgarian or bulgaria))) or ((bulgar or bulgariee) or bulge))".
• Adding a wildcard symbol may retrieve word variants: (((bulgariae OR vulgariae) or (bulgarischen or (vulgarian or bulgaria))) or ((bulgar or bulgariee) or bulge))*.