Perhaps you should try some spelling variations:
communication context » communication contexts, communication content, communicative context
based dimensional » based dimension, based dimensions, based dimensioning
context based » content based
rake angles » rake angle, large angles, grain angles
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 context based dimensional ((((array ang) or (rake angles))) or (arrays a))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: communication context based dimensional ((((array ang) OR (rake angles))) OR (arrays a)).
• Adding a wildcard symbol may retrieve word variants: communication context based dimensional ((((array ang) or (rake angles))) or (arrays a))*.