Perhaps you should try some spelling variations:
vulgariae » bulgariae, vulgarise, bulgaricae
bulgarische » bulgarischen, ungarische
bulgarieians » bulgariens, bulgarians, bulgarian, bulgarienians, bulgarianians, vulgarisians
bulger » bulges
bulgare » vulgare, bulgarien, vulgares
bulgarie » bulgarien, bulgarian, vulgaris

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