Perhaps you should try some spelling variations:
communication informatics » communication information, communications information, communicating information
informatics fast » informatics _
fast extendible » based extensible
array strong » array sharing, norway strong, stay strong
array string » arrays strings, array sharing, array forming

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

• Performing a fuzzy search may retrieve terms with similar spellings: communication informatics fast extendible ((array strong) or (array string))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: communication informatics fast extendible ((array strong) OR (array string)).
• Adding a wildcard symbol may retrieve word variants: communication informatics fast extendible ((array strong) or (array string))*.