Perhaps you should try some spelling variations:
communication applications » communication education, education applications
applications based » application based
based extension » based extraction
array range » ray range
array ang » arrays ang, array along, array nano
arrays a » arrays _

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "communication applications based extension ((((array ang) OR (array range))) OR (arrays a))~".
• Adding a wildcard symbol may retrieve word variants: communication applications based extension ((((array ang) OR (array range))) OR (arrays a))*.