Perhaps you should try some spelling variations:
communication relations » communication relational, communication relating, communications regulations
relations based » relation based, relations case, relations cases
based dimension » based dispersion, basic dimensions, based extension
array along » arrays long, array arcing, array paving
array ang » arrays ang, array range, array nano
arrays a » arrays _

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

• If you are trying to use Boolean operators, they must be ALL CAPS: communication relations based dimension ((((array ang) OR (array along))) OR (arrays a))~.
• Adding a wildcard symbol may retrieve word variants: communication relations based dimension ((((array ang) or (array along))) or (arrays a))*.