Perhaps you should try some spelling variations:
scale studies » scale study
filosofia la » filosofia da, filosofia le, filosofica da
filosofia a » filosofia da, filosofia e, filosofia _
test scale » tests scale, best scale, rest scale
studies la » studies lab, studies lca, studies lia

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 studies la ((filosofia a) OR (filosofia la)) litterature*".