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