Perhaps you should try some spelling variations:
die filosofica » di filosofia, de filosofia, vida filosofica
space studien » space studies, spaces studied, space student
e filosofica » e filosofia, e filosofiche, a filosofia
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 studien ((die filosofica) OR (e filosofica)) _ literature".
• Adding a wildcard symbol may retrieve word variants: its space studien ((die filosofica) OR (e filosofica)) _ literature*.