Perhaps you should try some spelling variations:
hoong zhang » hoong chang, hoong ang
yang guang » yang yang, yan guan, yang liang
kyoung yun » young yun, kyoung yang, hyoung gun
zhang yan » zhang fan, zhang jian, wang yan
gan guan » yan guan, quan guan, fan guon
yan kun » yan guan, yan yuan
a chen » ta chen, _ chen, n chen
yan a » can a, yan _, jan a

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

• If you are trying to use Boolean operators, they must be ALL CAPS: hoong zhang yan a chen ((yan kun) OR (((gan guan) OR (yang guang)))) kyoung yun ;~.
• Adding a wildcard symbol may retrieve word variants: hoong zhang yan a chen ((yan kun) or (((gan guan) or (yang guang)))) kyoung yun ;*.