Perhaps you should try some spelling variations:
bulgeriae » bulgaria, bulgarian, bulweria
bulgarie » bulgarien, bulgaria, bulgarian, bulgareie, vulgarie, bulgerie
bulgareiae » bulgaria, bulgarian, bulgarean, bulgareeiae, vulgareiae, bulgereiae
bulgariae » bulgaria, bulgarian, bulgarians, bulgareiae, vulgariae, bulgeriae
bulgaricae » bulgarische, bulgaria, bulgarian, bulgariae, bulgariane, bulgareicae, vulgaricae, bulgericae
bulgarica » bulgaria, bulgarisch, bulgarian, bulgareica, vulgarica, bulgerica
bulgareica » bulgaria, bulgariia, bulgareeica, vulgareica, bulgereica
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 (bulgareiae OR bulgariae)) OR (bulgaricae OR (bulgarica OR bulgareica))) OR (bulgar OR bulges)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((bulgeriae or bulgarie) or (bulgareiae or bulgariae)) or (bulgaricae or (bulgarica OR bulgareica))) or (bulgar or bulges))".
• Adding a wildcard symbol may retrieve word variants: ((((bulgeriae or bulgarie) or (bulgareiae or bulgariae)) or (bulgaricae or (bulgarica OR bulgareica))) or (bulgar or bulges))*.