Perhaps you should try some spelling variations:
scale studies » scale study
da literatura » la literatura, a literatura, de literatura
a filosofica » a filosofia, la filosofia, e filosofia
e filosofica » e filosofia, e filosofiche, a filosofia
sets scale » sets scaled, sets scales, set scale

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: sets scale studies ((a filosofica) OR (e filosofica)) da literatura.
• Adding a wildcard symbol may retrieve word variants: sets scale studies ((a filosofica) or (e filosofica)) da literatura*.