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

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

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