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