Perhaps you should try some spelling variations:
vulgariae » bulgariae, vulgarise, bulgaricae
bulgarie » bulgarien, vulgaris, vulgare, bulgareie, vulgarie, bulgerie
bulgareians » bulgarians, bulgariens, bulgarean, bulgareeians, vulgareians, bulgereians
bulgarian » hungarian, bulgareian, vulgarian, bulgerian
vulgarian » bulgarians, vulgaridad, hungarian
bulgarisch » bulgarische, bulgarischen, bulgareisch, vulgarisch, bulgerisch
bulgar » bulgare, vulgar, bulger
bulgaria » bulgareia, vulgaria, bulgeria

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 bulgarian)) OR (vulgarian OR bulgarisch))) OR ((bulgar OR bulgaria) OR bulge)).
• Adding a wildcard symbol may retrieve word variants: ((vulgariae or ((bulgarie or (bulgareians or bulgarian)) or (vulgarian or bulgarisch))) or ((bulgar or bulgaria) or bulge))*.