Perhaps you should try some spelling variations:
credit during » credit scoring, credit rating, exit during
dean credit » clean credit, deals credit, de credit
during risk » using risk, during crises, during crisis
liang ying » liang liying, huang ying, zhang ying
wang yang » wang liang, wang yanling
risk wong » risk among, risk along, risk work
wong sau » wong sam, wong siu, wong shiu

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 ((((wang yang) OR (liang ying))) OR (wang yan)) dean credit during risk wong sau ;~.
• Adding a wildcard symbol may retrieve word variants: wang ((((wang yang) or (liang ying))) or (wang yan)) dean credit during risk wong sau ;*.