Perhaps you should try some spelling variations:
yang yang » wang yan
wang yang » wang yan, wang liang, wang yanling
huang min » huang bin, huang lin, huang jing
min myung » min hyoung, jin kyung, kim myung
myung won » kyung woo, myung koo, seung won
yu cheng » yu chen, _ cheng
wu chen » yu chen, jui chen, hua chen

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((yang yang) or (wang yang)) yi ((wu chen) or (yu cheng)) huang min myung won ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((yang yang) OR (wang yang)) yi ((wu chen) OR (yu cheng)) huang min myung won ;.
• Adding a wildcard symbol may retrieve word variants: ((yang yang) or (wang yang)) yi ((wu chen) or (yu cheng)) huang min myung won ;*.