Perhaps you should try some spelling variations:
head credit » bad credit, eat credit, lend credit
during risk » using risk, during crisis, reducing risk
wang yang » wang yan, wang liang, wang yanling
yang big » yang jing, yang di, yang xi
big head » big dead, big leap, big red
wong sau » wong sam, wong siu, wong shiu
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 yang big head credit ((during risk) OR (during crises)) wong sau ;~.
• Adding a wildcard symbol may retrieve word variants: wang yang big head credit ((during risk) or (during crises)) wong sau ;*.