You may be able to get more results by adjusting your search query.

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