Perhaps you should try some spelling variations:
la literatura » la litterature, a literature
filosofia la » filosofia da, filosofia le, filosofica da
studien lap » studien a, studien am, studien das
test della » testa della, testi della, test delle
studien la » studien a, studien l, studien 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: "test della ((studien la) OR (studien lap)) filosofia la literatura".
• Adding a wildcard symbol may retrieve word variants: test della ((studien la) OR (studien lap)) filosofia la literatura*.