Perhaps you should try some spelling variations:
filosofia life » filosofia de, filosofia e, filosofia di
duale studien » duale studium, scale studien, duales studium
filosofia le » filosofia de, filosofia e, filosofia del
test duale » test double, test delle, test orale
studien de » studien der, studien die, studien des

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 duale studien de ((filosofia life) OR (filosofia le)) literature*".