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

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

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