Perhaps you should try some spelling variations:
communication functions » communicative functions, communication foundations, communication foundation
basic dimensions » based dimension, pacific dimensions, design dimensions
functions basic » functions based, foundations basic
array imaging » arrays imaging, airway imaging, ray imaging
array forming » array format, array arcing, array fermi
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 functions basic dimensions ((((array imaging) or (array forming))) or (arrays ang))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: communication functions basic dimensions ((((array imaging) OR (array forming))) OR (arrays ang)).
• Adding a wildcard symbol may retrieve word variants: communication functions basic dimensions ((((array imaging) or (array forming))) or (arrays ang))*.