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

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

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