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