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