Perhaps you should try some spelling variations:
filosofia pela » filosofia della, filosofia del, filosofia para
scale studien » scale studies, duale studien, soziale studien
scale student » late student, scale study, scale studies
filosofia da » filosofia de, filosofia del, filosofia e

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: quito ((scale studien) OR (scale student)) a ((filosofia pela) OR (filosofia da)) literatura.
• The words AND, OR and NOT may confuse the search; try adding quotes: "quito ((scale studien) OR (scale student)) a ((filosofia pela) or (filosofia da)) literatura".
• Adding a wildcard symbol may retrieve word variants: quito ((scale studien) OR (scale student)) a ((filosofia pela) or (filosofia da)) literatura*.