Perhaps you should try some spelling variations:
bulgariae » bulgaricae, bulgaria, bulgarians, bulgareiae, bulgeriae, bulgariaiae
bulgarie » bulgarien, bulgaria, vulgaris, bulgareie, bulgerie, bulgariaie
bulgerie » bulgarien, bulgaria, algerie
bulgarian » bulgaria, hungarian, bulgareian, bulgerian, bulgariaian
vulgarisns » vulgarises, vulgaris, bulgariens
bulgar » bulgare, bulger, bulgaria

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 bulgerie) OR (bulgarian OR vulgarisns))) OR (bulgar OR vulgar)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((bulgariae or ((bulgarie OR bulgerie) or (bulgarian or vulgarisns))) or (bulgar or vulgar))".
• Adding a wildcard symbol may retrieve word variants: ((bulgariae or ((bulgarie OR bulgerie) or (bulgarian or vulgarisns))) or (bulgar or vulgar))*.