Perhaps you should try some spelling variations:
da litterature » la litterature, de litterature, a litterature
filosofia da » filosofia de, filosofia del, filosofia e
studies lab » studies land, studies late, studies lead
test scale » tests scale, best scale, rest scale
studies la » studies lca, studies lia, studies l2

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) OR (studies lab)) filosofia da litterature".
• Adding a wildcard symbol may retrieve word variants: test scale ((studies la) OR (studies lab)) filosofia da litterature*.