Perhaps you should try some spelling variations:
best patients » obese patients, des patients, les patients
wang liang » wang yang
liang yang » liang ying, wang yang, yang yang
yang can » yang fan, yang dean, yang yang
can best » can boost
bu among » eu among
1 among » 1.5 among, 1.8 among, eu among

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: wang liang yang can best patients ((((1 among) OR (bu among))) OR (19 among)) letters ;~.
• Adding a wildcard symbol may retrieve word variants: wang liang yang can best patients ((((1 among) or (bu among))) or (19 among)) letters ;*.