Perhaps you should try some spelling variations:
"communicated disease" » "communicable disease", "complicated diseases", "communicate state"
"mediated diseases" » "related diseases", "medical diseases", "related disease"
"communicable diseases" » "communicate diseases"

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