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

• The words AND, OR and NOT may confuse the search; try adding quotes: "\"\\"((((\\\"practical guidebook to statistical and epidemiology.\\\") OR (\\\"practical guidebook to (biostatistics OR statistical) and epidemiology.\\\"))) OR (\\\"practical guide to statistics and epidemiology.\\\"))~\\"\"".
• Removing quotes may allow a broader search: ((((\ practical guidebook to statistical and epidemiology.\ ) OR (\ practical guidebook to (biostatistics OR statistical) and epidemiology.\ ))) OR (\ practical guide to statistics and epidemiology.\ ))~.