Perhaps you should try some spelling variations:
bulgariae » bulgaria, bulgarian, bulgarie, bulgareiae, vulgariae, bulgeriae
vulgareiae » vulgarise
bulgaricae » bulgarische, bulgaria, bulgarian, bulgariae, bulgariane, bulgareicae, vulgaricae, bulgericae
bulgarica » bulgaria, bulgarisch, bulgarian, bulgareica, vulgarica, bulgerica
bulgar » bulgare, vulgar, bulger

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: (((bulgariae OR vulgareiae) OR (bulgaricae OR bulgarica)) OR (bulgar OR bulge)).
• Adding a wildcard symbol may retrieve word variants: (((bulgariae or vulgareiae) or (bulgaricae or bulgarica)) or (bulgar or bulge))*.