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