Perhaps you should try some spelling variations:
duales studium » das studium
de litterature » la litterature, et litterature
de literatuur » de literatura, en literatuur, erde literatur
test duales » test doubles, test rules, test oracles
studium la » studium a, studium als, studium das

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: "test duales studium la filosofia ((de literatuur) OR (de litterature))".
• Adding a wildcard symbol may retrieve word variants: test duales studium la filosofia ((de literatuur) OR (de litterature))*.