Perhaps you should try some spelling variations:
based studies » based study
da literatura » la literatura, a literatura, na literatura
de literatura » de litterature, la literatura, y literatura
di filosofia » la filosofia, e filosofia
sets based » arts based, agents based
studies di » studies die, studies div, studies ds

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: "sets based studies di filosofia ((da literatura) OR (de literatura))".
• Adding a wildcard symbol may retrieve word variants: sets based studies di filosofia ((da literatura) OR (de literatura))*.