Perhaps you should try some spelling variations:
de literatura » de litterature, la literatura, y literatura
der filosofia » de filosofia, e filosofia, di filosofia
e literatura » y literatura, e literatur, a literatura
die studio » die studie, de studio, die studia
studio der » studio oder, studio del, studio dei
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 der filosofia ((e literatura) OR (de literatura))".
• Adding a wildcard symbol may retrieve word variants: tests die studio der filosofia ((e literatura) OR (de literatura))*.