Perhaps you should try some spelling variations:
championing chang » championing change, champion change
wang zhenpo » wang zheng
chang won » chang soon, chang ann, chang min
hyoung yu » hyoung gun, kyoung yun, young kyu
yang jie » yang jin, yang di, yang jui
hong yu » wong yue
han je » han jace

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: wang zhenpo ((han je) OR (yang jie)) championing chang won ((hyoung yu) OR (hong yu)) ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang zhenpo ((han je) or (yang jie)) championing chang won ((hyoung yu) OR (hong yu)) ;~".
• Adding a wildcard symbol may retrieve word variants: wang zhenpo ((han je) or (yang jie)) championing chang won ((hyoung yu) OR (hong yu)) ;*.