Perhaps you should try some spelling variations:
scale studien » scale studies, scale student, duale studien
scale studie » scale studies, scale study, sociale studies
y literatura » la literatura
e filosofia » la filosofia
filosofia y » filosofia e, filosofia _, filosofia de

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