Perhaps you should try some spelling variations:
bulgare » vulgare, vulgares, bulgere
bulgariae » bulgaricae, bulgarian, bulgarians, vulgariae, bulgeriae
bulgarien » bulgarian, bulgariann, vulgarisn, vulgaren, vulgarien, bulgerien
bulgerie » algerie, bulger, bergerie
bulgarie » bulgarian, vulgaris, vulgare, vulgarie, bulgerie
bulgaria » vulgaria, bulgeria
bulgar » vulgar, bulger

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: ((bulgaars OR (((bulgare OR bulgariae) OR (bulgarien OR bulgaria)) OR (bulgerie OR bulgarie))) OR bulgar).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((bulgaars or (((bulgare or bulgariae) or (bulgarien OR bulgaria)) or (bulgerie or bulgarie))) or bulgar)".
• Adding a wildcard symbol may retrieve word variants: ((bulgaars or (((bulgare or bulgariae) or (bulgarien OR bulgaria)) or (bulgerie or bulgarie))) or bulgar)*.