Perhaps you should try some spelling variations:
die filosofica » di filosofia, de filosofia, e filosofica
space studies » peace studies, surface studies
a literatura » la literatura, y literatura, a literatur
studies die » studie die, studien die, studies does
its space » its spaces, its splice, cities space

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: "its space studies die filosofica ((a literatura) OR (a literature))".
• Adding a wildcard symbol may retrieve word variants: its space studies die filosofica ((a literatura) OR (a literature))*.