Perhaps you should try some spelling variations:
credit during » credit scoring, credit rating, exit during
during risk » using risk, during crises, during crisis
end credit » lend credit, bond credit, fund credit
wang yang » wang yan, wang liang, wang yanling
yang big » yang jing, yang di, yang xi
work sex » work six, work self, work sren
big end » big bend, big dead, big head
work so » work soc, works so, work some

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 end credit during risk ((work so) OR (work sex)) ;~.
• Adding a wildcard symbol may retrieve word variants: wang yang big end credit during risk ((work so) or (work sex)) ;*.