Perhaps you should try some spelling variations:
moderne studien » modern studies, modern studio, modernist studies
modell studien » model studies, models studies, modern studies
ly literatura » la literatura, a literatura, de literatura
y literatura » la literatura

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: test ((modell studien) OR (moderne studien)) _ filosofia ((ly literatura) OR (y literatura)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "test ((modell studien) OR (moderne studien)) _ filosofia ((ly literatura) or (y literatura))".
• Adding a wildcard symbol may retrieve word variants: test ((modell studien) OR (moderne studien)) _ filosofia ((ly literatura) or (y literatura))*.