Perhaps you should try some spelling variations:
da literatura » la literatura, a literatura, de literatura
filosofia da » filosofia de, filosofia del, filosofia e
best scale » bast scale, rest scale, burst scale
studie die » studie der
studie di » studie d, studie de, studie der

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 di) OR (studie die)) filosofia da literatura*".