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

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

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