Perhaps you should try some spelling variations:
sharing risk » sharing best, during risk
liang yang » liang ying, yang yang, huang yang
wang yang » wang yan, wang liang, wang yanling
among hui » among heis, among eu, tong hui
der cost » oder cost, user cost, debt cost
au costa » can costa, _ costa, da costa

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 (wang yang)) ((der cost) or (au costa)) sharing risk among hui ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang ((liang yang) OR (wang yang)) ((der cost) OR (au costa)) sharing risk among hui ;.
• Adding a wildcard symbol may retrieve word variants: wang ((liang yang) or (wang yang)) ((der cost) or (au costa)) sharing risk among hui ;*.