Perhaps you should try some spelling variations:
la literatura » la litterature, a literature
filosofia la » filosofia da, filosofia le, filosofica da
text social » texto social, texts social, next social
studies la » studies lab, studies lca, studies lia
studies li » studies lia, studies lit, studies l2

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: text social ((studies la) OR (studies li)) filosofia la literatura*.