Perhaps you should try some spelling variations:
communication cohesion » communication collections, communication control, communication cost
basic dimension » basic dimensions, based dimension, based dimensions
cohesion basic » cohesion based, conversion basic, cohesion brain
array ang » arrays ang, array along, array range
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 cohesion basic dimension ((array ang) or (arrays a))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: communication cohesion basic dimension ((array ang) OR (arrays a)).
• Adding a wildcard symbol may retrieve word variants: communication cohesion basic dimension ((array ang) or (arrays a))*.