Perhaps you should try some spelling variations:
wang ying » wang yang, wang yong, wang jing
ying tang » ying yang, ying chang, tang tang
kang hay » eang hay, kang han, kang tae
yun hin » kyun pin, yun chen, yun shik
yang yi » yang di, yang jui
yang xi » yang di, yang jui
n gain » _ gain, run gain
hai » hadi, haji, hari

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

• Performing a fuzzy search may retrieve terms with similar spellings: wang ying tang ((yun hin) or (n gain)) ((yang yi) OR (yang xi)) ((kang hay) or (dang hai)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang ying tang ((yun hin) OR (n gain)) ((yang yi) OR (yang xi)) ((kang hay) OR (dang hai)) ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang ying tang ((yun hin) or (n gain)) ((yang yi) OR (yang xi)) ((kang hay) or (dang hai)) ;*".