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