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

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

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