Perhaps you should try some spelling variations:
vulgariae » bulgariae, vulgarise, vulgaridad
bulgaricae » bulgarica, bulgarische, bulgarian, bulgareicae, vulgaricae, bulgericae
bulgere » bulgare, bulger, bilgere
bulgareia » bulgariia, bulgarian, bulgarie, bulgareeia, vulgareia, bulgereia
bulgaria » bulgareia, vulgaria, bulgeria
bulgar » bulgare, vulgar, bulger

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