Perhaps you should try some spelling variations:
della studiosa » dello studio
alla studiosa » all studios, allo studio, valla studio
der filosofia » de filosofia, e filosofia, di filosofia
filosofia a » filosofia da, filosofia la, filosofia e

You may be able to get more results by adjusting your search query.

• The words AND, OR and NOT may confuse the search; try adding quotes: "testi ((della studiosa) OR (alla studiosa)) der filosofia a literature*".