Perhaps you should try some spelling variations:
among masters » among partners, among farmers, among actors
patients 1.8 » patients 10.1, patients 10.5, patients 10.6
de patients » des patients, do patients, de pacientes
yang yang » wang yang, wang yan
1.8 among » 1.5 among, 19 among, 1 among
yang fan » zhang fan, yang dean, yang jin
wai yan » wang yan, wei yang

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: "wai yan ((yang fan) OR (yang yang)) de patients 1.8 among masters ;~".
• Adding a wildcard symbol may retrieve word variants: wai yan ((yang fan) OR (yang yang)) de patients 1.8 among masters ;*.