Perhaps you should try some spelling variations:
la literatura » la litterature, a literature
agents based » agent based
filosofia la » filosofia da, filosofia le, filosofica da
study la » study law, study lay, study lca
arts » art

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: ((((sets based) OR (arts based))) OR (agents based)) study la filosofia la literatura.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((sets based) OR (arts based))) or (agents based)) study la filosofia la literatura".
• Adding a wildcard symbol may retrieve word variants: ((((sets based) OR (arts based))) or (agents based)) study la filosofia la literatura*.