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