Perhaps you should try some spelling variations:
data studium » das studium, data studies, data studio
y literatura » la literatura
5 filosofia » a filosofia, _ filosofia, la filosofia
y filosofia » a filosofia, la filosofia, di filosofia
e filosofia » la 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 (y filosofia))) OR (e filosofia)) y literatura.
• The words AND, OR and NOT may confuse the search; try adding quotes: "its data studium ((((5 filosofia) OR (y filosofia))) or (e filosofia)) y literatura".
• Adding a wildcard symbol may retrieve word variants: its data studium ((((5 filosofia) OR (y filosofia))) or (e filosofia)) y literatura*.