Perhaps you should try some spelling variations:
testing scale » testing scala, eating scale, testing shape
scale studies » scale study
die filosofia » di filosofia, e filosofia, da filosofia
de filosofia » e filosofia, di 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: "testing scale studies ((die filosofia) OR (de filosofia)) a literature".
• Adding a wildcard symbol may retrieve word variants: testing scale studies ((die filosofia) OR (de filosofia)) a literature*.