Perhaps you should try some spelling variations:
vulgariae » bulgariae, vulgarise, bulgaricae
bulgarie » bulgaria, bulgarian, vulgaris
bulgarien » bulgarian, bulgariann, vulgarisn, bulgaria
bulgarians » bulgarian, bulgariens, bulgaria
bulgarisch » bulgarische, bulgarischen
bulger » bulge, bulges

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 (((bulgarie OR bulgarien) OR bulgarians) OR (vulcanized OR bulgarisch))) OR (vulgar OR bulger)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((vulgariae or (((bulgarie OR bulgarien) or bulgarians) or (vulcanized or bulgarisch))) or (vulgar or bulger))".
• Adding a wildcard symbol may retrieve word variants: ((vulgariae or (((bulgarie OR bulgarien) or bulgarians) or (vulcanized or bulgarisch))) or (vulgar or bulger))*.