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 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 (biostatistics OR statistical) and epidemiology.\\\\\\\") OR ((\\\\\"practical OR \\\\\"practice) guide to statistics and epidemiology.\\\\\\\"))~\\\\\\"\\\\\"\\\\"\\\"\\"\"".
• Removing quotes may allow a broader search: \ \\ \\\ \\\\ (((\\\ practical OR \\\ practice) guidebook to (biostatistics OR statistical) and epidemiology.\\\\\ ) OR ((\\\ practical OR \\\ practice) guide to statistics and epidemiology.\\\\\ ))~\\\\ \\\ \\ \.