Perhaps you should try some spelling variations:
during crisis » during crises, housing crisis
during risk » using risk, during crises, reducing risk
wang yang » wang yan, wang liang, wang yanling
yang yang » wang yan
wong shiu » wong siu, song shin, wong sau
yang jie » yang jin, yang di, yang jui
jie risk » fire risk, life risk, like risk

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: wang yang yang jie risk ((during risk) OR (during crisis)) ((wong shiu) or (cong shu)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang yang yang jie risk ((during risk) OR (during crisis)) ((wong shiu) OR (cong shu)) ;.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang yang yang jie risk ((during risk) OR (during crisis)) ((wong shiu) or (cong shu)) ;".
• Adding a wildcard symbol may retrieve word variants: wang yang yang jie risk ((during risk) OR (during crisis)) ((wong shiu) or (cong shu)) ;*.