Perhaps you should try some spelling variations:
bulgariae » bulgaricae, bulgarian, bulgarie, vulgariae, bulgeriae, bulgarieiae
bulgarica » bulgarisch, bulgarian, bulgarien, vulgarica, bulgerica, bulgarieica
bulgaria » vulgaria, bulgeria, bulgarieia
bulgar » vulgar, bulger, bulgarie
bulgare » vulgare, bulgere, bulgariee, bulgarie, bulgarien
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 bulgaria) OR (bulgariae OR bulgarica)) OR ((bulgar OR bulgare) OR bulges)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(((bulgariae or bulgaria) or (bulgariae or bulgarica)) or ((bulgar OR bulgare) or bulges))".
• Adding a wildcard symbol may retrieve word variants: (((bulgariae or bulgaria) or (bulgariae or bulgarica)) or ((bulgar OR bulgare) or bulges))*.