Perhaps you should try some spelling variations:
de litterature » la litterature, et litterature
1 filosofia » a filosofia, _ filosofia, la filosofia
y filosofia » a filosofia, la filosofia, di filosofia
e filosofia » la filosofia
west das » westen das, west ak, west a

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: west das studium ((1 filosofia) OR (((y filosofia) OR (e filosofia)))) de litterature.
• The words AND, OR and NOT may confuse the search; try adding quotes: "west das studium ((1 filosofia) or (((y filosofia) OR (e filosofia)))) de litterature".
• Adding a wildcard symbol may retrieve word variants: west das studium ((1 filosofia) or (((y filosofia) OR (e filosofia)))) de litterature*.