Perhaps you should try some spelling variations:
"communicate diseases" » "communicable disease", "complicated diseases", "communicate disabled"
"communicated disease" » "communicable disease", "complicated diseases"
"communicated vision" » "community vision"
"communicate state" » "communicate strategy", "communicating state", "communication state"

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: (((("communicate diseases") OR ("communicable diseases"))) OR ((((("communicated disease") OR ("communicated vision"))) OR ("communicate state")))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"communicate diseases\") or (\"communicable diseases\"))) or (((((\"communicated disease\") OR (\"communicated vision\"))) or (\"communicate state\"))))".
• Removing quotes may allow a broader search: (((( communicate diseases ) or ( communicable diseases ))) or ((((( communicated disease ) OR ( communicated vision ))) or ( communicate state )))).
• Adding a wildcard symbol may retrieve word variants: (((("communicate diseases") or ("communicable diseases"))) or ((((("communicated disease") OR ("communicated vision"))) or ("communicate state"))))*.