Perhaps you should try some spelling variations:
communication communications » communication communication, communication communicating, communications communication
communications physicians » communications physical, communications physics, communications geophysical
dimensions pure » dimensions pre, dimensions part, dimensions future
dimensions pe » dimensions pre, dimensions age, dimensions des

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

• Performing a fuzzy search may retrieve terms with similar spellings: communication communications physicians ((dimensions pe) or (dimensions pure)) file~.
• If you are trying to use Boolean operators, they must be ALL CAPS: communication communications physicians ((dimensions pe) OR (dimensions pure)) file.
• Adding a wildcard symbol may retrieve word variants: communication communications physicians ((dimensions pe) or (dimensions pure)) file*.