Perhaps you should try some spelling variations:
communication concepts » communication circuits, communication congresses, communication channels
based dimension » based dispersion, basic dimensions, based extension
concepts based » concept based, concepts cases, concepts case
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: communication concepts based dimension ((((array along) or (arrays ang))) or (arrays a))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: communication concepts based dimension ((((array along) OR (arrays ang))) OR (arrays a)).
• Adding a wildcard symbol may retrieve word variants: communication concepts based dimension ((((array along) or (arrays ang))) or (arrays a))*.