Perhaps you should try some spelling variations:
cheng zhang » cheng han, zhen zhang, chen zheng
hong cheng » hong sheng, ong cheng, zong cheng
zhang ming » zhang xin
qian wang » yiqian wang, qian rong, qian yan
yan hong » tan hong, yan cong, can hong
kong seo » hong seo, kong sek, kong lee
sar » sara, star, saur

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

• Performing a fuzzy search may retrieve terms with similar spellings: qian wang yan hong cheng zhang ming ((kong seo) or (kong sar)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: qian wang yan hong cheng zhang ming ((kong seo) OR (kong sar)) ;*.