Perhaps you should try some spelling variations:
a literatura » la literatura, a literature, y literatura
burst scale » bast scale, best scale, just scale
studies lca » studies lia, studies local, studies lead
filosofia a » filosofia da, filosofia la, filosofia e
studies la » studies lab, 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: "burst scale ((studies la) OR (studies lca)) filosofia a literatura".
• Adding a wildcard symbol may retrieve word variants: burst scale ((studies la) OR (studies lca)) filosofia a literatura*.