Perhaps you should try some spelling variations:
during risk » using risk, during crisis, reducing risk
wang liang » wang yang
liang big » liang ying, liang li
de credit » du credit, 2 credit, trade credit
wong sau » wong sam, wong siu, wong shiu
big de » big idea, big deal, big dead
crises » crisis

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 big de credit ((during risk) OR (during crises)) wong sau ;~.
• Adding a wildcard symbol may retrieve word variants: wang liang big de credit ((during risk) or (during crises)) wong sau ;*.