Perhaps you should try some spelling variations:
le letterature » e letterature, la litterature, e letteratura
da filosofia » la filosofia, di filosofia, de filosofia
day studium » das studium, dem studium, d studium
a filosofia » la filosofia, e filosofia, di filosofia
test day » rest day, test data, feast day

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

• If you are trying to use Boolean operators, they must be ALL CAPS: test day studium ((da filosofia) OR (a filosofia)) le letterature.
• Adding a wildcard symbol may retrieve word variants: test day studium ((da filosofia) or (a filosofia)) le letterature*.