Perhaps you should try some spelling variations:
communications regulator » communications regulation, communications regulations, communication educator
based discussion » brief discussion
regulator based » regulators based, regulation based, emulator based
array range » ray range
array along » arrays long, array arcing, array paving
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 regulator based discussion ((((array range) or (array along))) or (arrays a))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: communications regulator based discussion ((((array range) OR (array along))) OR (arrays a)).
• Adding a wildcard symbol may retrieve word variants: communications regulator based discussion ((((array range) or (array along))) or (arrays a))*.