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 statistics) OR (biostatistics OR statistics)) OR (biostatistics OR statistics)) AND epidemiology.\\\\\") OR ((\\\\\"practical OR \\\\\"practice) guide to statistical AND epidemiology.\\\\\"))~\\\\"\\\"\\"\"".
• The words AND, OR and NOT may confuse the search; try adding quotes: "\"\\"\\\"\\\\"\\\\\"(((\\\\\\"practical OR \\\\\\"practice) guidebook to (((biostatistics OR statistics) OR (biostatistics OR statistics)) OR (biostatistics OR statistics)) AND epidemiology.\\\\\\") OR ((\\\\\\"practical OR \\\\\\"practice) guide to statistical and epidemiology.\\\\\\"))~\\\\\"\\\\"\\\"\\"\"".
• Removing quotes may allow a broader search: \ \\ \\\ (((\\\\ practical OR \\\\ practice) guidebook to (((biostatistics OR statistics) OR (biostatistics OR statistics)) OR (biostatistics OR statistics)) AND epidemiology.\\\\ ) OR ((\\\\ practical OR \\\\ practice) guide to statistical and epidemiology.\\\\ ))~\\\ \\ \.