Perhaps you should try some spelling variations:
na literatura » la literatura, a literatura, a literature
ii filosofia » di filosofia, la filosofia, e filosofia
filosofia na » filosofia da, filosofia la, filosofia n
der studium » oder studium, des studium, dein studium
dem studium » das studium, im studium, zum studium

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: "text ((der studium) OR (dem studium)) ii filosofia na literatura*".