Perhaps you should try some spelling variations:
scale student » late student, scale study, scale studies
der filosofia » de filosofia, di filosofia, da filosofia
la literatura » la litterature, a literature
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.

• If you are trying to use Boolean operators, they must be ALL CAPS: tests scale student ((der filosofia) OR (e filosofia)) la literatura.
• Adding a wildcard symbol may retrieve word variants: tests scale student ((der filosofia) or (e filosofia)) la literatura*.