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

• If you are trying to use Boolean operators, they must be ALL CAPS: \ \\ \\\ \\\\ \\\\\ \\\\\\ \\\\\\\ \\\\\\\\ ((\\\\\\\\\ practical guidebook to (((((((biostatistics OR statistics) OR biostatistical) OR biostatistical) OR biostatistical) OR biostatistical) OR biostatistical) OR biostatistical) AND epidemiology.\\\\\\\\\ ) OR (((\\\\\\\\\ practical guide to statistical AND epidemiology.\\\\\\\\\ ) OR (\\\\\\\\\ practice guide to statistical AND epidemiology.\\\\\\\\\ ))))~\\\\\\\\ \\\\\\\ \\\\\\ \\\\\ \\\\ \\\ \\ \.
• The words AND, OR and NOT may confuse the search; try adding quotes: "\ \\ \\\ \\\\ \\\\\ \\\\\\ \\\\\\\ \\\\\\\\ ((\\\\\\\\\ practical guidebook to (((((((biostatistics OR statistics) OR biostatistical) OR biostatistical) OR biostatistical) OR biostatistical) OR biostatistical) OR biostatistical) and epidemiology.\\\\\\\\\ ) OR (((\\\\\\\\\ practical guide to statistical and epidemiology.\\\\\\\\\ ) OR (\\\\\\\\\ practice guide to statistical and epidemiology.\\\\\\\\\ ))))~\\\\\\\\ \\\\\\\ \\\\\\ \\\\\ \\\\ \\\ \\ \".
• Adding a wildcard symbol may retrieve word variants: \ \\ \\\ \\\\ \\\\\ \\\\\\ \\\\\\\ \\\\\\\\ ((\\\\\\\\\ practical guidebook to (((((((biostatistics OR statistics) OR biostatistical) OR biostatistical) OR biostatistical) OR biostatistical) OR biostatistical) OR biostatistical) and epidemiology.\\\\\\\\\ ) OR (((\\\\\\\\\ practical guide to statistical and epidemiology.\\\\\\\\\ ) OR (\\\\\\\\\ practice guide to statistical and epidemiology.\\\\\\\\\ ))))~\\\\\\\\ \\\\\\\ \\\\\\ \\\\\ \\\\ \\\ \\ \*.