Perhaps you should try some spelling variations:
communications regulation » communications regulations, communications revolution, communications simulation
regulation based » regulation basic, regulation cases, granulation based
based extension » based extraction
array string » array strong, arrays strings, array sharing
arrays a » arrays _

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

• Performing a fuzzy search may retrieve terms with similar spellings: communications regulation based extension ((((array format) or (array string))) or (arrays a))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: communications regulation based extension ((((array format) OR (array string))) OR (arrays a)).
• Adding a wildcard symbol may retrieve word variants: communications regulation based extension ((((array format) or (array string))) or (arrays a))*.