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