Perhaps you should try some spelling variations:
et litterature » la litterature, art literature
de litterature » la litterature
kontext duale » kontext lokale, kontext die, kontext das
studium e » studium _, studium 1, studium 8
studium 3 » studium _, studium 1, studium 8

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: kontext duale ((studium e) OR (studium 3)) filosofia ((de litterature) OR (et litterature)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "kontext duale ((studium e) or (studium 3)) filosofia ((de litterature) OR (et litterature))".
• Adding a wildcard symbol may retrieve word variants: kontext duale ((studium e) or (studium 3)) filosofia ((de litterature) OR (et litterature))*.