Perhaps you should try some spelling variations:
del literatura » de literatura, pela literatura, da literatura
spaces studie » spaces studied, space studies, spaces state
spaces stable » spaces stability
die filosofia » di filosofia, de filosofia, e filosofia

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: "lists ((spaces studie) OR (spaces stable)) die filosofia del literatura".
• Adding a wildcard symbol may retrieve word variants: lists ((spaces studie) OR (spaces stable)) die filosofia del literatura*.