Perhaps you should try some spelling variations:
communication relations » communication relational, communication relating, communications regulations
based dimensional » based dimension, based dimensions, based dimensioning
relations based » relation based, relations case, relations cases
array along » arrays long, array arcing, array paving
array range » ray range
arrays ang » arrays a

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

• Performing a fuzzy search may retrieve terms with similar spellings: communication relations based dimensional ((((array along) or (array range))) or (arrays ang))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: communication relations based dimensional ((((array along) OR (array range))) OR (arrays ang)).
• Adding a wildcard symbol may retrieve word variants: communication relations based dimensional ((((array along) or (array range))) or (arrays ang))*.