Perhaps you should try some spelling variations:
model literature » models literature, modern literature, cordel literature
model literatur » modell literatur, moden literatur, modelle literatur
under studium » und studium, oder studium, under studied
texts under » texts index
studium la » studium a, studium als, studium das

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: "texts under studium la filosofia ((model literature) OR (model literatur))".
• Adding a wildcard symbol may retrieve word variants: texts under studium la filosofia ((model literature) OR (model literatur))*.