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