Perhaps you should try some spelling variations:
ii filosofia » di filosofia, la filosofia, a filosofia
a literatura » la literatura, a literature, y literatura
e filosofia » la filosofia
d studium » _ studium, 2 studium, 4 studium
test d » test de, test do, test der

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 d studium ((ii filosofia) OR (e filosofia)) a literatura".
• Adding a wildcard symbol may retrieve word variants: test d studium ((ii filosofia) OR (e filosofia)) a literatura*.