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

• Performing a fuzzy search may retrieve terms with similar spellings: (((("practical guidebook to biostatistical and epidemiology.") OR ("practice guidebook to biostatistics and epidemiology."))) OR ("practical guide to statistical and epidemiology."))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"practical guidebook to biostatistical and epidemiology.\") OR (\"practice guidebook to biostatistics and epidemiology.\"))) OR (\"practical guide to statistical and epidemiology.\"))*".
• Removing quotes may allow a broader search: (((( practical guidebook to biostatistical and epidemiology. ) OR ( practice guidebook to biostatistics and epidemiology. ))) OR ( practical guide to statistical and epidemiology. ))*.