You may be able to get more results by adjusting your search query.

• Removing quotes may allow a broader search: \ \\ ((\\\ practical guidebook to ((biostatistics OR statistical) OR (biostatistics OR statistical)) AND epidemiology.\\\ ) OR (\\\ practical guide to statistics AND epidemiology.\\\ ))*\\~.

Perhaps you should try some spelling variations:
"\ \\ \\\ practical guidebook to biostatistics OR statistical OR biostatistics OR statistical AND epidemiology.\\\ OR \\\ practical guide to statistics AND epidemiology.\\\ *\\ » "\ \\ \\\ practice guidebook to biostatistics OR statistical OR biostatistics OR statistical AND epidemiology.\\\ OR \\\ practice guide to statistics AND epidemiology.\\\ *\\ (Expand Search)