Perhaps you should try some spelling variations:
lang yanling » wang yanling, wang yangming, zhang yunling
wucan china » wuhan china, tuan china, human china
boon chong » boon siong, joon chang
daun yang » du yang, tan yang, un yang
chong hai » hong hai, chong nam, chong wan
dan yang » tan yang, wang yang, yang yang

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: lang yanling ((wucan china) OR (can china)) ((dan yang) OR (daun yang)) boon chong hai ;~.
• Adding a wildcard symbol may retrieve word variants: lang yanling ((wucan china) or (can china)) ((dan yang) or (daun yang)) boon chong hai ;*.