Perhaps you should try some spelling variations:
yong yoon » wong yoon, yong khoon
wang yang » wang yan, wang liang, wang yanling
yun chen » yung chen, yu chen, yuan cheng
run gain » run pain
yang wei » fang wei, zhang wei, liang wei
wang wei » zhang wei, wang zhi
chang ha » chang mae

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

• Performing a fuzzy search may retrieve terms with similar spellings: wang ((yong yoon) or (wang yang)) ((yun chen) or (run gain)) ((yang wei) OR (wang wei)) chang ha ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang ((yong yoon) OR (wang yang)) ((yun chen) OR (run gain)) ((yang wei) OR (wang wei)) chang ha ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang ((yong yoon) or (wang yang)) ((yun chen) or (run gain)) ((yang wei) OR (wang wei)) chang ha ;*".