Perhaps you should try some spelling variations:
hoong chang » hoong ang, huang chang, joon chang
yang guang » yang yang, yang liang
kyoung yun » young yun, kyoung yang, hyoung gun
chang yan » zhang yan, chang yun, wang yan
yan guan » yan yuan, yihan guan, quan guan
gan guan » quan guan, fan guon, gui guan
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 chang yan a chen ((yan guan) OR (((gan guan) OR (yang guang)))) kyoung yun ;~.
• Adding a wildcard symbol may retrieve word variants: hoong chang yan a chen ((yan guan) or (((gan guan) or (yang guang)))) kyoung yun ;*.