Perhaps you should try some spelling variations:
bulgariae » bulgaricae, bulgaria, bulgarian, vulgariae, bulgeriae, bulgariaiae
vulgaria » bulgaria, vulgaris, vulgari
bulgarie » bulgarien, bulgaria, bulgarian, vulgarie, bulgerie, bulgariaie
bulgar » vulgar, bulger, bulgaria
bulgare » vulgare, bulgere, bulgariae, bulgarien, bulgaria

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