Perhaps you should try some spelling variations:
during crisis » during crises, housing crisis
during risk » using risk, during crises, reducing risk
work shiu » wong shiu, work six
yan yang » yang yang, dan yang, tan yang
yao yang » yang yang
den exit » eu exit, new exit
wang » wing, wan, lang

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 ((yan yang) OR (yao yang)) den exit ((during risk) OR (during crisis)) work shiu ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang ((yan yang) OR (yao yang)) den exit ((during risk) or (during crisis)) work shiu ;~".
• Adding a wildcard symbol may retrieve word variants: wang ((yan yang) OR (yao yang)) den exit ((during risk) or (during crisis)) work shiu ;*.