Perhaps you should try some spelling variations:
del literatura » de literatura, pela literatura, da literatura
data studium » das studium, data studies, data studio
5 filosofia » e filosofia, y filosofia, _ filosofia
a filosofia » la filosofia, e filosofia, di filosofia
its data » sets data

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: its data studium ((5 filosofia) OR (a filosofia)) del literatura.
• Adding a wildcard symbol may retrieve word variants: its data studium ((5 filosofia) or (a filosofia)) del literatura*.