Perhaps you should try some spelling variations:
cheng leong » chee leong, cheng ling
cheng tong » chung tong, chen rong, chen yong
jeng dong » eng hong, zeng doug
qian yan » qian jun, qian yi
yan guan » gan guan, yan yuan, yang guang
dong bin » dong sin, dong di, dann bin
guan li » gan li, yuan li, yuan lin

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

• Performing a fuzzy search may retrieve terms with similar spellings: qian yan guan li ((cheng tong) or (cheng leong)) jeng dong bin ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: qian yan guan li ((cheng tong) OR (cheng leong)) jeng dong bin ;*.