Perhaps you should try some spelling variations:
della studien » cella studie, delphi studien, modell studien
la literatura » la litterature, a literature
filosofia la » filosofia da, filosofia le, filosofica da
a filosofia » la filosofia, e filosofia, di filosofia
test della » testa della, testi della, test delle
studien a » studien am, studien _, studien 3

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

• Adding a wildcard symbol may retrieve word variants: test della studien a filosofia la literatura*.