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 jing, liang ying, yang liang
yang yang » wang yang, wang yan
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.

• If you are trying to use Boolean operators, they must be ALL CAPS: wang ((((yang ying) OR (yang yang))) OR (huang ying)) end cost during risk cong shu ;~.
• Adding a wildcard symbol may retrieve word variants: wang ((((yang ying) or (yang yang))) or (huang ying)) end cost during risk cong shu ;*.