Perhaps you should try some spelling variations:
boost during » roosts during, books during, boom during
cost during » crust during, west during, roosts during
crises cong » crises china, crises costs, crises cross
wang liang » wang yang
liang yang » liang ying, wang yang, yang yang
yang mind » yang cindy, yang jin, sang minh

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 mind ((cost during) OR (boost during)) crises cong shu ;~.
• Adding a wildcard symbol may retrieve word variants: wang liang yang mind ((cost during) or (boost during)) crises cong shu ;*.