Perhaps you should try some spelling variations:
during risk » using risk, during crises, during crisis
cost during » boost during, crust during, west during
huang ying » huang jing, huang ting, huang yang
yang ying » yang yang, yang jing, liang ying
risk cong » risk coping, risk among, risk along
end cost » end close, land cost, end iot

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "wang ((yang ying) OR (huang ying)) end cost during risk cong shu ;~".
• Adding a wildcard symbol may retrieve word variants: wang ((yang ying) OR (huang ying)) end cost during risk cong shu ;*.