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