Perhaps you should try some spelling variations:
during risk » using risk, during crises, during crisis
cost during » boost during, crust during, west during
liang yang » wang yang, yang yang, huang yang
liang ying » liang liying, huang ying, zhang ying
among shu » among eu, among sex, among hr
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 ((liang yang) OR (liang ying)) end cost during risk ((among shu) OR (cong shu)) ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang ((liang yang) OR (liang ying)) end cost during risk ((among shu) or (cong shu)) ;~".
• Adding a wildcard symbol may retrieve word variants: wang ((liang yang) OR (liang ying)) end cost during risk ((among shu) or (cong shu)) ;*.