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