Perhaps you should try some spelling variations:
bulgariae » bulgaria, bulgarie, bulgarians
bulgaricae » bulgaria, bulgarie, bulgaricus, bulgariae, bulgarische, bulgariene
bulgarische » bulgarischen, ungarische
bulgarian » bulgaria, hungarian
bulgarica » bulgaria, bulgarisch, bulgarien
bulgareeiae » bulgarieeiae, vulgareeiae, bulgarieneiae
bulgare » bulgarie, vulgare, bulgarien
bulger » bulge, bulges

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 bulgareeiae) OR ((bulgaricae OR bulgarische) OR (bulgarian OR bulgarica))) OR (bulgare OR bulger)).
• Adding a wildcard symbol may retrieve word variants: (((bulgariae or bulgareeiae) or ((bulgaricae or bulgarische) or (bulgarian or bulgarica))) or (bulgare or bulger))*.