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