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

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

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