Perhaps you should try some spelling variations:
lang yanling » wang yanling, wang yangming, zhang yunling
chang chun » chang ch'un, chang chuan, chang chen
long thanh » luong thanh, long han, long trinh
yang chin » yang chik, hang china, wang chi
zhang wei » zhen wei
yang jin » yang jie, yang jun, ying jin
chun hui » chuang hui, china hui, chun h

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 ((yang chin) OR (yang jin)) chang chun hui ((zhang wei) OR (long thanh)) ;~.
• Adding a wildcard symbol may retrieve word variants: lang yanling ((yang chin) or (yang jin)) chang chun hui ((zhang wei) or (long thanh)) ;*.