Perhaps you should try some spelling variations:
"communicate state" » "communicate strategy", "communicating state", "communication state"
"communicating a" » "communicating _", "communicating about", "communicating agents"
"communicable diseases" » "communicable disease"

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: (("communicable diseases") OR ((("communicate state") OR ("communicating a")))).
• Removing quotes may allow a broader search: (( communicable diseases ) or ((( communicate state ) or ( communicating a )))).
• Adding a wildcard symbol may retrieve word variants: (("communicable diseases") or ((("communicate state") or ("communicating a"))))*.