Perhaps you should try some spelling variations:
john edmondson » john edmonds, john edmonston, jonathan edmondson
john edmunds » john edmonds, hon edmund, john edwards
john edmund » bohun edmund, hon edmund, von edmund
epidemiologist » epidemiologists, epidemiologie, epidemiologic

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: ((((john edmunds) OR (john edmund))) OR (john edmondson)) (epidemiologist).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((john edmunds) OR (john edmund))) or (john edmondson)) (epidemiologist)".
• Adding a wildcard symbol may retrieve word variants: ((((john edmunds) OR (john edmund))) or (john edmondson)) (epidemiologist)*.