Perhaps you should try some spelling variations:
filosofica la » filosofica da, filosofia la, filosofia da
la literatura » la litterature, a literature
e filosofica » e filosofia, e filosofiche, a filosofia
tests scale » tests stable, sets scale, tests safe
test scale » best scale, rest scale, treat scale

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: "((test scale) OR (tests scale)) study e filosofica la literatura".
• Adding a wildcard symbol may retrieve word variants: ((test scale) OR (tests scale)) study e filosofica la literatura*.