Perhaps you should try some spelling variations:
space studien » space studies, spaces studied, space student
der filosofia » de filosofia, e filosofia, di filosofia
e literatura » de literatura, e literatur, a literatura
y literatura » la literatura
tests space » test space, texts space, lists space
studien der » studie der, studenten der

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: "tests space studien der filosofia ((e literatura) OR (y literatura))".
• Adding a wildcard symbol may retrieve word variants: tests space studien der filosofia ((e literatura) OR (y literatura))*.