Perhaps you should try some spelling variations:
donor chen » don chen
can donor » can donors, a donor
wang ning » wang jing, wang liang, wang yang
die bank » die banken
bank can » banks can, bank card, bank bank
yang jie » yang jin, yang jui, yang xi
yang yun » yang jun, tang yun, yang yue
yang yi » yang xi, yang jui

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: die bank can donor chen ((wang ning) OR (((yang jie) OR (yang di)))) ((yang yun) OR (yang yi)) ;~.
• Adding a wildcard symbol may retrieve word variants: die bank can donor chen ((wang ning) or (((yang jie) or (yang di)))) ((yang yun) or (yang yi)) ;*.