Perhaps you should try some spelling variations:
patients 10.6 » patients 10.1, patients 11.6, patients 14.6
patients 10.5 » patients 10.1, patients 14.5, patients 10.12
among masters » among partners, among farmers, among actors
frans van » hans van
yang van » yang fan, yang dean, trang van
nan ya » nan yan, nana yaa

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: nan ya ((yang van) OR (frans van)) de ((patients 10.5) OR (patients 10.6)) among masters ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "nan ya ((yang van) or (frans van)) de ((patients 10.5) OR (patients 10.6)) among masters ;~".
• Adding a wildcard symbol may retrieve word variants: nan ya ((yang van) or (frans van)) de ((patients 10.5) OR (patients 10.6)) among masters ;*.