Perhaps you should try some spelling variations:
da literature » a literature, da literatura, la literature
filosofia da » filosofia de, filosofia del, filosofia e
studies la » studies lab, studies lca, studies lia
test same » test some, test sample, test stage
test sat » test set, test site, test sets

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: ((test sat) OR (test same)) studies la filosofia da literature.
• Adding a wildcard symbol may retrieve word variants: ((test sat) or (test same)) studies la filosofia da literature*.