Perhaps you should try some spelling variations:
modell studien » model studies, models studies, moderne studien
di filosofia » la filosofia, e filosofia
test modell » tekst modell, test models, test model
filosofia e » filosofia de, filosofia del
e literatur » die literatur
studien di » studien die, studien dd, studien der

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

• Adding a wildcard symbol may retrieve word variants: test modell studien di filosofia e literatur*.