Perhaps you should try some spelling variations:
life literature » polite literature, prose literature
e literature » e literatur, prose literature, norse literature
studies la » studies lab, studies lca, studies lia
text csv » text case, text c, text co

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 csv) OR (text ch)) studies la filosofia ((e literature) OR (life literature)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((text csv) OR (text ch)) studies la filosofia ((e literature) or (life literature))".
• Adding a wildcard symbol may retrieve word variants: ((text csv) OR (text ch)) studies la filosofia ((e literature) or (life literature))*.