Perhaps you should try some spelling variations:
bulgarie » bulgarien, bulgarian, vulgaris
bulgariae » bulgaricae, bulgarian, bulgarians
bulgarica » bulgarisch, bulgarian, bulgarien
bulger » bulges
bulgare » bulgarien, vulgares
vulgare » vulgar, vulgaris, vulgarly

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