Perhaps you should try some spelling variations:
die filosofica » di filosofia, e filosofica, vida filosofica
space studie » space studies, spaces studied, space study
de filosofia » e filosofia, di filosofia, la filosofia
lists space » its space, bits space, list spaces

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: lists space studie ((die filosofica) OR (de filosofia)) a literature.
• Adding a wildcard symbol may retrieve word variants: lists space studie ((die filosofica) or (de filosofia)) a literature*.