Perhaps you should try some spelling variations:
modell studien » model studies, models studies, moderne studien
e literatura » de literatura, y literatura, e literatur
rosi modell » osi modell, osi model, osi modells
5 filosofia » e filosofia, y filosofia, _ filosofia
a filosofia » la filosofia, e filosofia, di filosofia

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: "rosi modell studien ((5 filosofia) OR (a filosofia)) e literatura".
• Adding a wildcard symbol may retrieve word variants: rosi modell studien ((5 filosofia) OR (a filosofia)) e literatura*.