Perhaps you should try some spelling variations:
sharing risk » sharing best, during risk
cost sharing » risk sharing, cost savings
liang yang » wang yang, yang yang, huang yang
liang ying » liang liying, huang ying, zhang ying
dean cost » can cost, debt cost, der cost
among men » among women

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 (liang ying)) dean cost sharing risk among men ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang ((liang yang) OR (liang ying)) dean cost sharing risk among men ;*".