Perhaps you should try some spelling variations:
bulgareiae » bulgariae, bulgarian, bulgarie, bulgareeiae, vulgareiae, bulgarieeiae
bulgar » bulgare, vulgar, bulgarie
bulgaria » bulgareia, vulgaria, bulgarieia
bulgarien » bulgareien, vulgarien, bulgarieien, bulgarian
bulger » bulge, bulges
vulgaria » vulgaris, vulgari, vulvaria

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: (bulgareiae OR ((bulgar OR bulger) OR ((bulgaria OR vulgaria) OR bulgarien))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(bulgareiae or ((bulgar or bulger) or ((bulgaria OR vulgaria) or bulgarien)))".
• Adding a wildcard symbol may retrieve word variants: (bulgareiae or ((bulgar or bulger) or ((bulgaria OR vulgaria) or bulgarien)))*.