Perhaps you should try some spelling variations:
del literatura » de literatura, pela literatura, da literatura
5 filosofia » e filosofia, y filosofia, _ filosofia
a filosofia » e filosofia, di filosofia
its day » its decay, its data
dairy » daily

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 day) OR (its dairy)) studium ((5 filosofia) OR (((a filosofia) OR (la filosofia)))) del literatura.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((its day) OR (its dairy)) studium ((5 filosofia) or (((a filosofia) or (la filosofia)))) del literatura".
• Adding a wildcard symbol may retrieve word variants: ((its day) OR (its dairy)) studium ((5 filosofia) or (((a filosofia) or (la filosofia)))) del literatura*.