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)) OR (biostatistics OR (biostatistics OR biostatistics))) AND epidemiology.\\\\\ ) OR (\\\\\ practical guidebook to (biostatistics OR (biostatistics OR biostatistics)) AND epidemiology.\\\\\ ))) OR (((\\\\\ practice guidebook to ((biostatistics OR (biostatistics OR biostatistics)) OR (biostatistics OR (biostatistics OR biostatistics))) AND epidemiology.\\\\\ ) OR (\\\\\ practice guidebook to (biostatistics OR (biostatistics OR 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 OR (biostatistics OR biostatistics)) OR (biostatistics OR (biostatistics OR biostatistics))) and epidemiology.\\\\\ ) OR (\\\\\ practical guidebook to (biostatistics OR (biostatistics OR biostatistics)) and epidemiology.\\\\\ ))) OR (((\\\\\ practice guidebook to ((biostatistics OR (biostatistics OR biostatistics)) OR (biostatistics OR (biostatistics OR biostatistics))) and epidemiology.\\\\\ ) OR (\\\\\ practice guidebook to (biostatistics OR (biostatistics OR biostatistics)) and epidemiology.\\\\\ ))))) OR (\\\\\ practical guide to statistics and epidemiology.\\\\\ ))~\\\\ \\\ \\ \".
• Adding a wildcard symbol may retrieve word variants: \ \\ \\\ \\\\ ((((((\\\\\ practical guidebook to ((biostatistics OR (biostatistics OR biostatistics)) OR (biostatistics OR (biostatistics OR biostatistics))) and epidemiology.\\\\\ ) OR (\\\\\ practical guidebook to (biostatistics OR (biostatistics OR biostatistics)) and epidemiology.\\\\\ ))) OR (((\\\\\ practice guidebook to ((biostatistics OR (biostatistics OR biostatistics)) OR (biostatistics OR (biostatistics OR biostatistics))) and epidemiology.\\\\\ ) OR (\\\\\ practice guidebook to (biostatistics OR (biostatistics OR biostatistics)) and epidemiology.\\\\\ ))))) OR (\\\\\ practical guide to statistics and epidemiology.\\\\\ ))~\\\\ \\\ \\ \*.