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