Perhaps you should try some spelling variations:
le litterature » la litterature, de litterature, le letterature
test studium » des studium, test studies, selbst studium
ii filosofia » di filosofia, la filosofia, a filosofia
e filosofia » la filosofia
test test » testing 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: "test test studium ((ii filosofia) OR (e filosofia)) le litterature".
• Adding a wildcard symbol may retrieve word variants: test test studium ((ii filosofia) OR (e filosofia)) le litterature*.