Perhaps you should try some spelling variations:
la literatura » la litterature, a literature
da filosofia » la filosofia, di filosofia, a filosofia
filosofia la » filosofia da, filosofia le, filosofica da
de studium » dem studium, des studium, oder studium
d studium » _ studium, 2 studium, 4 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: "est ((de studium) OR (d studium)) da filosofia la literatura*".