Perhaps you should try some spelling variations:
la litterature » a literature
di filosofia » la filosofia, e filosofia
filosofia la » filosofia da, filosofia le, filosofica da
test duales » test rules, test oracles, test dummies
studium di » studium die, studium i, studium ii

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