Perhaps you should try some spelling variations:
communication functions » communicative functions, communication foundations, communication foundation
based dimensions » based dimension, basic dimensions, based dimensioning
functions based » function based
array triangle » coral triangle, aaa triangle, afar triangle
ray triangle » a triangle, aaa triangle, fraud triangle
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 functions based dimensions ((((array triangle) or (ray triangle))) or (arrays a))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: communication functions based dimensions ((((array triangle) OR (ray triangle))) OR (arrays a)).
• Adding a wildcard symbol may retrieve word variants: communication functions based dimensions ((((array triangle) or (ray triangle))) or (arrays a))*.