Perhaps you should try some spelling variations:
during risk » using risk, during crises, during crisis
code during » care during, code using, role during
huang ying » huang jing, huang ting, huang yang
how stable » do stable, how scale, how state
huang lin » huang bin, huang jing, huang ting
land code » land cover
how some » how women

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 ((huang ying) OR (huang lin)) land code during risk ((how some) OR (how stable)) ;~.
• Adding a wildcard symbol may retrieve word variants: wang ((huang ying) or (huang lin)) land code during risk ((how some) or (how stable)) ;*.