Perhaps you should try some spelling variations:
bulgariae » bulgaricae, bulgaria, bulgarians
bulgarie » bulgaria, vulgaris, vulgare
bulgarien » bulgarian, vulgarisn, vulgaren, bulgaria
bulger » bulge, bulges
bulgarian » bulgaria, hungarian

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 bulger) OR bulgarian) OR vulgar) OR bulgarien)).
• Adding a wildcard symbol may retrieve word variants: (bulgariae or ((((bulgarie or bulger) or bulgarian) or vulgar) or bulgarien))*.