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: ((((\ practical guidebook to ((statistical OR statistical) OR ((statistical OR statistical) OR (statistical OR statistical))) AND epidemiology.\ ) OR (((\ practical guidebook to ((statistical OR statistical) OR ((statistical OR statistical) OR (statistical OR statistical))) AND epidemiology.\ ) OR (\ practical guidebook to ((statistical OR statistical) OR ((statistical OR statistical) OR (statistical OR statistical))) AND epidemiology.\ ))))) OR (((\ practical guide to statistics AND epidemiology.\ ) OR (\ practice guide to statistics AND epidemiology.\ ))))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\ practical guidebook to ((statistical OR statistical) OR ((statistical OR statistical) OR (statistical OR statistical))) and epidemiology.\ ) OR (((\ practical guidebook to ((statistical OR statistical) OR ((statistical OR statistical) OR (statistical OR statistical))) and epidemiology.\ ) OR (\ practical guidebook to ((statistical OR statistical) OR ((statistical OR statistical) OR (statistical OR statistical))) and epidemiology.\ ))))) OR (((\ practical guide to statistics and epidemiology.\ ) OR (\ practice guide to statistics and epidemiology.\ ))))~".
• Adding a wildcard symbol may retrieve word variants: ((((\ practical guidebook to ((statistical OR statistical) OR ((statistical OR statistical) OR (statistical OR statistical))) and epidemiology.\ ) OR (((\ practical guidebook to ((statistical OR statistical) OR ((statistical OR statistical) OR (statistical OR statistical))) and epidemiology.\ ) OR (\ practical guidebook to ((statistical OR statistical) OR ((statistical OR statistical) OR (statistical OR statistical))) and epidemiology.\ ))))) OR (((\ practical guide to statistics and epidemiology.\ ) OR (\ practice guide to statistics and epidemiology.\ ))))*.