Perhaps you should try some spelling variations:
studies limma » studies linear, studies list, studies live
y literatura » la literatura
studies lia » studies lca, studies li, studies list
studies lit » studies list, studies li, studies light
filosofia y » filosofia e, filosofia _, filosofia de
test scale » tests scale, best scale, rest scale

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 scale ((((studies lia) OR (studies limma))) OR (studies lit)) filosofia y literatura.
• The words AND, OR and NOT may confuse the search; try adding quotes: "test scale ((((studies lia) OR (studies limma))) or (studies lit)) filosofia y literatura".
• Adding a wildcard symbol may retrieve word variants: test scale ((((studies lia) OR (studies limma))) or (studies lit)) filosofia y literatura*.