Perhaps you should try some spelling variations:
communication international » competition international, publication international
communication information » communication education
first extendible » first extensive, first extension
extendible array » extendible graph
array string » array strong, arrays strings, array sharing

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

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