Perhaps you should try some spelling variations:
"communicate diseases" » "communicated disease", "complicated diseases", "communicate discover"
"communicate disabled" » "communicate discover", "communicated disease", "communicate defined"
"communicate listen" » "communication listen", "communicate like", "communicate better"

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