Perhaps you should try some spelling variations:
yang ying » yang yang, huang ying, liang ying
yang jing » wang jing, yang jin, huang jing
sharing a » sharing _
cva risk » cvar risk, a risk, era risk
cvd risk » d risk
wong yue » wang yue, hong yu
wang he » wang hua, wang zhi, wang wei

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

• Performing a fuzzy search may retrieve terms with similar spellings: wang ((yang ying) or (yang jing)) ((cva risk) OR (cvd risk)) sharing a ((wong yue) or (wang he)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang ((yang ying) OR (yang jing)) ((cva risk) OR (cvd risk)) sharing a ((wong yue) OR (wang he)) ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang ((yang ying) or (yang jing)) ((cva risk) OR (cvd risk)) sharing a ((wong yue) or (wang he)) ;*".