Perhaps you should try some spelling variations:
tales studies » states studies, games studies, cases studies
ds filosofia » di filosofia, de filosofia, da filosofia
e literatura » de literatura, y literatura, a literatura
e literatur » die literatur
los tales » los males, los vales, los metales

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: "los tales studies ds filosofia ((e literatura) OR (e literatur))*".