Perhaps you should try some spelling variations:
vulgariae » bulgariae, vulgarise, bulgaricae
bulgarie » bulgarien, vulgaris, vulgare, bulgareie, vulgarie
bulgariens » bulgarienns, vulgarisns, vulgarens, bulgarien, bulgareiens, vulgariens
bulgareians » bulgarians, bulgarean, bulgareeians, vulgareians
bulgarian » hungarian, bulgareian, vulgarian
vulgarian » bulgarians, vulgaridad, hungarian
bulgarisch » bulgarische, bulgarischen, bulgareisch, vulgarisch
bulgar » bulgare, vulgar
bulgaria » bulgareia, vulgaria
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 ((bulgareians OR bulgariens) OR bulgarian)) OR (vulgarian OR bulgarisch))) OR ((bulgar OR bulgaria) OR bulger)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((vulgariae or ((bulgarie or ((bulgareians OR bulgariens) or bulgarian)) or (vulgarian or bulgarisch))) or ((bulgar or bulgaria) or bulger))".
• Adding a wildcard symbol may retrieve word variants: ((vulgariae or ((bulgarie or ((bulgareians OR bulgariens) or bulgarian)) or (vulgarian or bulgarisch))) or ((bulgar or bulgaria) or bulger))*.