Perhaps you should try some spelling variations:
costs patients » cost patient, courts patient, doctors patients
patients risk » patient risk, patients links, patients si
how slow » how low, how slower, grow slow
yang up » yang jui, tying up, yang jun
yang xi » yang di, yang yi, yang jui
wang » wing, wan, lang

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 yanling ((yang up) OR (yang xi)) costs patients risk how slow ;~.
• Adding a wildcard symbol may retrieve word variants: wang yanling ((yang up) or (yang xi)) costs patients risk how slow ;*.