Perhaps you should try some spelling variations:
ratings risk » patients risk
cost ratings » cost savings, costs savings, bond ratings
liang ying » liang liying, zhang ying, jiang yajing
huang ying » huang jing, huang ting, huang yang
risk along » risk among, ask along
along who » along two, wrong who
can cost » can costa, can lost, can post

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

• Performing a fuzzy search may retrieve terms with similar spellings: wang ((liang ying) or (huang ying)) can cost ratings risk along who ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang ((liang ying) OR (huang ying)) can cost ratings risk along who ;.
• Adding a wildcard symbol may retrieve word variants: wang ((liang ying) or (huang ying)) can cost ratings risk along who ;*.