Perhaps you should try some spelling variations:
vulgariae » bulgariae, vulgarise, bulgaricae, vulgarie
vulgarische » bulgarische, bulgarischen, bulgarischer
bulgarian » bulgaria, hungarian, bulgareian, vulgarian, bulgariaian
vulgaria » bulgaria, vulgaris, vulgari
bulgar » bulgare, vulgar, bulgaria
bulgarie » bulgareie, vulgarie, bulgariaie, bulgaria, vulgaris, vulgare
bulgarien » bulgareien, vulgarien, bulgariaien, bulgarian, vulgarisn, vulgaren, bulgaria
bulger » 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 (vulgarische OR (bulgarian OR vulgaria))) OR (((bulgar OR bulger) OR (bulgarie OR bulgarien)) OR bulge)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((vulgariae or (vulgarische or (bulgarian or vulgaria))) or (((bulgar OR bulger) or (bulgarie or bulgarien)) or bulge))".
• Adding a wildcard symbol may retrieve word variants: ((vulgariae or (vulgarische or (bulgarian or vulgaria))) or (((bulgar OR bulger) or (bulgarie or bulgarien)) or bulge))*.