Perhaps you should try some spelling variations:
scales study » scale study, cases study, scalp study
de filosofia » e filosofia, di filosofia, la filosofia
e literature » e literatur, life literature, prose literature
scales sted » scales step, scales sites, scales set
filosofia e » filosofia de, filosofia del

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 ((scales study) OR (scales sted)) de filosofia e literature.
• Adding a wildcard symbol may retrieve word variants: sets ((scales study) or (scales sted)) de filosofia e literature*.