Perhaps you should try some spelling variations:
communication cohesion » communication collections, communication control, communication cost
decision group » decision about
decision fear » decision field, decision areas, decision a
excision from » exclusion from, excitation from, decisions from
cohesion a » cohesion _

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 cohesion a ((((decision fear) OR (decision group))) OR (excision from)) river~.
• Adding a wildcard symbol may retrieve word variants: communication cohesion a ((((decision fear) or (decision group))) or (excision from)) river*.