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)) AND epidemiology.\\\\ ) OR (\\\\ practical guidebook to (statistical OR statistical) AND epidemiology.\\\\ ))) OR (((\\\\ practice guidebook to ((statistical OR statistical) OR (statistical OR statistical)) AND epidemiology.\\\\ ) OR (\\\\ practice guidebook to (statistical OR statistical) AND epidemiology.\\\\ ))))) OR (\\\\ practical 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)) and epidemiology.\\\\ ) OR (\\\\ practical guidebook to (statistical OR statistical) and epidemiology.\\\\ ))) OR (((\\\\ practice guidebook to ((statistical OR statistical) OR (statistical OR statistical)) and epidemiology.\\\\ ) OR (\\\\ practice guidebook to (statistical OR statistical) and epidemiology.\\\\ ))))) OR (\\\\ practical guide to statistics and epidemiology.\\\\ ))~\\\ \\ \".
• Adding a wildcard symbol may retrieve word variants: \ \\ \\\ ((((((\\\\ practical guidebook to ((statistical OR statistical) OR (statistical OR statistical)) and epidemiology.\\\\ ) OR (\\\\ practical guidebook to (statistical OR statistical) and epidemiology.\\\\ ))) OR (((\\\\ practice guidebook to ((statistical OR statistical) OR (statistical OR statistical)) and epidemiology.\\\\ ) OR (\\\\ practice guidebook to (statistical OR statistical) and epidemiology.\\\\ ))))) OR (\\\\ practical guide to statistics and epidemiology.\\\\ ))~\\\ \\ \*.