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