Perhaps you should try some spelling variations:
bulgariae » bulgaricae, bulgaria, bulgarian, bulgareiae, bulgeriae, bulgariaiae
bulgar » bulgare, bulger, bulgaria
bulgarie » bulgareie, bulgerie, bulgariaie, bulgarien, bulgaria, bulgarian
vulgarie » vulgarise, vulgaris, vulgare

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