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