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