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