Perhaps you should try some spelling variations:
communication conclusions » communication solutions, communication contributions, communications connections
conclusions ethics » conclusion ethics, conclusions authors, conclusions cities
ethics dimension » ethical dimension, ethical dimensions, metrics dimensions
whose spaces » shape spaces, whose race, loose space
phase spaces » phase space, shape spaces, state spaces
use spaces » tuple spaces, gauge spaces

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

• If you are trying to use Boolean operators, they must be ALL CAPS: communication conclusions ethics dimension ((((use spaces) OR (whose spaces))) OR (phase spaces))~.
• Adding a wildcard symbol may retrieve word variants: communication conclusions ethics dimension ((((use spaces) or (whose spaces))) or (phase spaces))*.