Perhaps you should try some spelling variations:
lang yanling » wang yanling, wang yangming, zhang yunling
yanling yang » yang yang, ying yang
davis test » davis best, david west, davis tsu
dali test » data test, ai test, api 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 test)) kim dong yong suk ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "lang yanling yang ((dali test) OR (davis test)) kim dong yong suk ;*".