Perhaps you should try some spelling variations:
"communicate disabled" » "communicate listen", "communicate defined", "communicate deliverables"
"communicate discover" » "community discovery", "communications over", "communicate listen"
"communicated disease" » "complicated diseases", "communicate state", "communicated vision"

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