Perhaps you should try some spelling variations:
during yang » during ianb
wang yuhan » wang luhang, wang yan, wang yidan
can close » can lose, a close, can cause
yuhan zi » yuan zi, yan zi
can cost » can costa, can lost, can post
run cash » can cash, von cash, non cash
yang du » yang di, yang d, yang mu

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 yuhan zi ((((can cost) OR (can close))) OR (run cash)) being during yang du ;~.
• Adding a wildcard symbol may retrieve word variants: wang yuhan zi ((((can cost) or (can close))) or (run cash)) being during yang du ;*.