Perhaps you should try some spelling variations:
communication functions » communicative functions, communication foundations, communication foundation
array sharing » arrays bearing, array imaging, way sharing
a dimensions » _ dimensions, 2 dimensions, 3 dimensions
array string » array strong, arrays strings, array forming
array arcing » array forming, array probing, array using

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 a dimensions ((((array sharing) or (array string))) or (array arcing))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: communication functions a dimensions ((((array sharing) OR (array string))) OR (array arcing)).
• Adding a wildcard symbol may retrieve word variants: communication functions a dimensions ((((array sharing) or (array string))) or (array arcing))*.