Perhaps you should try some spelling variations:
communication informatics » communication information, communications information, communicating information
informatics fast » informatics _
fast extension » first extension, base extension, fair extension
array string » array strong, arrays strings, array sharing
array using » arrays using

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 extension ((array string) or (((array using) or (array format))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: communication informatics fast extension ((array string) OR (((array using) OR (array format)))).
• Adding a wildcard symbol may retrieve word variants: communication informatics fast extension ((array string) or (((array using) or (array format))))*.