Perhaps you should try some spelling variations:
la literatura » la litterature, a literature
filosofia la » filosofia da, filosofia le, filosofica da
estudio del » estudios del, estudio de, estudios de
studio dei » studio di, studio del, estudio de
tests die » test die, tests der

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: "tests die ((studio dei) OR (estudio del)) filosofia la literatura".
• Adding a wildcard symbol may retrieve word variants: tests die ((studio dei) OR (estudio del)) filosofia la literatura*.