You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: "\"(((((\\"practical OR \\"practice) guidebook to biostatistics AND epidemiology.\\") OR ((\\"practical OR \\"practice) guidebook to (biostatistical OR statistical) AND epidemiology.\\"))) OR ((\\"practical OR \\"practice) guide to statistics AND epidemiology.\\"))~\"".
• The words AND, OR and NOT may confuse the search; try adding quotes: "\"\\"(((((\\\"practical OR \\\"practice) guidebook to biostatistics AND epidemiology.\\\") OR ((\\\"practical OR \\\"practice) guidebook to (biostatistical OR statistical) and epidemiology.\\\"))) OR ((\\\"practical OR \\\"practice) guide to statistics AND epidemiology.\\\"))~\\"\"".
• Removing quotes may allow a broader search: (((((\ practical OR \ practice) guidebook to biostatistics AND epidemiology.\ ) OR ((\ practical OR \ practice) guidebook to (biostatistical OR statistical) and epidemiology.\ ))) OR ((\ practical OR \ practice) guide to statistics AND epidemiology.\ ))~.