Perhaps you should try some spelling variations:
et litterature » la litterature, art literature
des studiums » das studium
i filosofia » di filosofia, e filosofia, y filosofia
a filosofia » la filosofia, e filosofia, di filosofia
tests des » test des, tests der, tests test

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: "tests des studiums ((i filosofia) OR (a filosofia)) et litterature*".