Perhaps you should try some spelling variations:
la literatura » la litterature, a literature
filosofia la » filosofia da, filosofia le, filosofica da
testi della » test della, testa della, testi delle
studien die » studie die, studien der
studien di » studien dd, studien der, studien bei

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 ((studien di) OR (studien die)) filosofia la literatura*".