Perhaps you should try some spelling variations:
bulgariae » bulgaricae, bulgarian, bulgarians
bulgarie » bulgarien, bulgarian, vulgaris
bulgarischen » ungarischen, bulgarien
ungarische » ungarischen
vulgarian » bulgarian, bulgarians, vulgaridad
bulgare » vulgare, bulgarien, vulgares

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