Perhaps you should try some spelling variations:
lang yanling » wang yanling, wang yangming, zhang yunling
yanling yang » yang yang, ying yang
davis best » davis test, david west, davis robert
dali test » davis test, data test, ai test
dong yong » dong yang, dong hoang, kong young
kim dong » kim song, kim jong, kim young
yong suk » chong suk, cong sun, rong su

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: lang yanling yang ((dali test) or (davis best)) kim dong yong suk ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: lang yanling yang ((dali test) OR (davis best)) kim dong yong suk ;*.