Perhaps you should try some spelling variations:
die filosofica » di filosofia, de filosofia, e filosofica
lab studenten » lab student, alte studenten, fur studenten
studenten die » studenten der, studenten des, studenten und
a literatura » la literatura, y literatura, a literatur
tests lab » test lab, tests load

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 lab studenten die filosofica ((a literatura) OR (a literature))".
• Adding a wildcard symbol may retrieve word variants: tests lab studenten die filosofica ((a literatura) OR (a literature))*.