Perhaps you should try some spelling variations:
d3 filosofica » di filosofia, de filosofia, da filosofia
filosofica la » filosofica da, filosofia la, filosofia da
la literatura » la litterature, a literature
test scale » tests scale, rest scale, treat scale
best scale » bast scale, rest scale, burst scale
study d3 » study d, study de, study die

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 (best scale)) study d3 filosofica la literatura*".