Perhaps you should try some spelling variations:
vulgariae » bulgariae, vulgarise, bulgaricae
bulgarie » bulgarien, bulgaria, bulgarian
bulgarians » bulgarian, bulgariens, bulgaria
vulgarized » vulcanized, velarized, vulgaridad
bulgarisch » bulgarischen
bulgarische » bulgarischene, bulgarischen, ungarische
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 bulgarians) OR (vulgarized OR (bulgarisch OR bulgarische)))) OR (vulgar OR bulger)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((vulgariae or ((bulgarie or bulgarians) or (vulgarized or (bulgarisch OR bulgarische)))) or (vulgar or bulger))".
• Adding a wildcard symbol may retrieve word variants: ((vulgariae or ((bulgarie or bulgarians) or (vulgarized or (bulgarisch OR bulgarische)))) or (vulgar or bulger))*.