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) OR statistical) and epidemiology.\\ ) OR (\\ practice guide to statistics and epidemiology.\\ ))*.

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