Perhaps you should try some spelling variations:
bulgeriae » bulgariae, bulgaricae, bulgaria
bulgarie » bulgarien, bulgaria, vulgaris, bulgareie, vulgarie, bulgerie
bulgarian » bulgaria, hungarian, bulgareian, vulgarian, bulgerian
vulgaricae » bulgaricae, bulgarica, bulgariae
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: ((((bulgeriae OR bulgarie) OR bulgarian) OR (vulgaricae OR vulgaricae)) OR (bulgar OR bulges)).
• Adding a wildcard symbol may retrieve word variants: ((((bulgeriae or bulgarie) or bulgarian) or (vulgaricae or vulgaricae)) or (bulgar or bulges))*.