Perhaps you should try some spelling variations:
bulgaricae » bulgarica, bulgarische, bulgaria, bulgareicae, vulgaricae, bulgericae
bulgarien » bulgarian, bulgaria, bulgareien, vulgarien, bulgerien
bulgareiae » bulgaria, bulgarian, bulgarie, bulgareeiae, vulgareiae, bulgereiae
bulgariae » bulgaria, bulgarian, bulgarie, bulgareiae, vulgariae, bulgeriae
vulgaricae » bulgarica, vulgaridad, vulgarise
bulgar » bulgare, vulgar, bulger
bulges » bulge

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: ((((bulgaricae OR bulgarien) OR bulgareiae) OR (bulgariae OR vulgaricae)) OR (bulgar OR bulges)).
• Adding a wildcard symbol may retrieve word variants: ((((bulgaricae or bulgarien) or bulgareiae) or (bulgariae or vulgaricae)) or (bulgar or bulges))*.