Perhaps you should try some spelling variations:
sharing risk » sharing best, during risk
liang yang » liang ying, wang yang, huang yang
yang yang » wang yang, wang yan
risk tong » risk among, risk along
au costa » can costa, _ costa, da costa
tong hui » wang hui
eu cost » der cost, end cost, eu court

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 yang) or (yang yang)) ((eu cost) OR (au costa)) sharing risk tong hui ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang ((liang yang) OR (yang yang)) ((eu cost) OR (au costa)) sharing risk tong hui ;.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang ((liang yang) or (yang yang)) ((eu cost) OR (au costa)) sharing risk tong hui ;".
• Adding a wildcard symbol may retrieve word variants: wang ((liang yang) or (yang yang)) ((eu cost) OR (au costa)) sharing risk tong hui ;*.