Perhaps you should try some spelling variations:
documentations » documentation, documentaries, argumentations
dokumentation » documentation
dokumentationen » documentationen, documentation, dokumentationsband, dokumentarischen
documentationen » documentation, documentationt, adocumentation
argumentationen » argumentation, argumentations, argumentative

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: ((documentations or dokumentation) or (dokumentationen or (documentationen OR argumentationen)))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((documentations OR dokumentation) OR (dokumentationen OR (documentationen OR argumentationen))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((documentations or dokumentation) or (dokumentationen or (documentationen OR argumentationen)))".
• Adding a wildcard symbol may retrieve word variants: ((documentations or dokumentation) or (dokumentationen or (documentationen OR argumentationen)))*.