Perhaps you should try some spelling variations:
die filosofia » di filosofia, e filosofia, da filosofia
scale studie » scale studies, scale studien, scale study
de filosofia » e filosofia, di filosofia, la filosofia
y literatura » la literatura
best scale » bast scale, rest scale, burst scale

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: "best scale studie ((die filosofia) OR (de filosofia)) y literatura".
• Adding a wildcard symbol may retrieve word variants: best scale studie ((die filosofia) OR (de filosofia)) y literatura*.