Perhaps you should try some spelling variations:
scale student » late student, scale study, scale studies
die filosofia » di filosofia, de filosofia, da filosofia
e literatura » de literatura, y literatura, e literatur
tests scale » tests stable, sets scale, tests safe
e filosofia » la filosofia

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 scale student ((die filosofia) OR (e filosofia)) e literatura".
• Adding a wildcard symbol may retrieve word variants: tests scale student ((die filosofia) OR (e filosofia)) e literatura*.