Perhaps you should try some spelling variations:
chen zheng » chen aizheng, cheng zhang, chen zhe
chen zhen » chen zhe
min jeong » min hong, mun leong
kin keong » king kong
yan yuan » yan guan, fang yuan, nan yan
yuan li » yuan lin, guan li, yuan zi
wang » wing, wan, lang

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 yan yuan li ((chen zheng) OR (chen zhen)) ((min jeong) OR (kin keong)) shu ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang yan yuan li ((chen zheng) or (chen zhen)) ((min jeong) OR (kin keong)) shu ;~".
• Adding a wildcard symbol may retrieve word variants: wang yan yuan li ((chen zheng) or (chen zhen)) ((min jeong) OR (kin keong)) shu ;*.