Perhaps you should try some spelling variations:
"communicated diseases" » "communicated disease", "communicable disease", "communicate discover"
"communicate disabled" » "communicate discover", "communicated disease", "communicate defined"
"complicated diseases" » "complicated cases", "complex diseases", "complicated case"
"communicate listen" » "communication listen", "communicate like", "communicate better"
"mediated diseases" » "related diseases", "medical diseases", "related 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: (((((("communicated diseases") OR ((("communicate disabled") OR ("communicate listen"))))) OR ("communicable diseases"))) OR ((("complicated diseases") OR ("mediated diseases")))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((((\"communicated diseases\") or (((\"communicate disabled\") OR (\"communicate listen\"))))) or (\"communicable diseases\"))) or (((\"complicated diseases\") or (\"mediated diseases\"))))".
• Removing quotes may allow a broader search: (((((( communicated diseases ) or ((( communicate disabled ) OR ( communicate listen ))))) or ( communicable diseases ))) or ((( complicated diseases ) or ( mediated diseases )))).
• Adding a wildcard symbol may retrieve word variants: (((((("communicated diseases") or ((("communicate disabled") OR ("communicate listen"))))) or ("communicable diseases"))) or ((("complicated diseases") or ("mediated diseases"))))*.