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 guidebook to biostatistics AND epidemiology.\\\\\") OR (\\\\\"((practice guide) OR (practical guide)) to (statistics OR statistical) AND epidemiology.\\\\\"))~\\\\"\\\"\\"\"".
• The words AND, OR and NOT may confuse the search; try adding quotes: "\"\\"\\\"\\\\"\\\\\"((\\\\\\"practical guidebook to biostatistics and epidemiology.\\\\\\") OR (\\\\\\"((practice guide) OR (practical guide)) to (statistics OR statistical) and epidemiology.\\\\\\"))~\\\\\"\\\\"\\\"\\"\"".
• Removing quotes may allow a broader search: \ \\ \\\ ((\\\\ practical guidebook to biostatistics and epidemiology.\\\\ ) OR (\\\\ ((practice guide) OR (practical guide)) to (statistics OR statistical) and epidemiology.\\\\ ))~\\\ \\ \.