Perhaps you should try some spelling variations:
huang chang » huang cheng, hoong chang, huang yang
chuan chuan » chen chuan, chung chuan, chang chuan
wang xiao » wang qiao, wang xiaoyi, wang xiaozu
khan syed » ahsan syed, shah syed, khan sher
chuan ong » chuan bang
chong hai » chong nam, chong wan, chong yah
hong hai » shang hai, zhong tai, dang hai

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 xiao ((khan syed) OR (huang chang)) chuan chuan ong ((chong hai) OR (hong hai)) ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang xiao ((khan syed) or (huang chang)) chuan chuan ong ((chong hai) OR (hong hai)) ;~".
• Adding a wildcard symbol may retrieve word variants: wang xiao ((khan syed) or (huang chang)) chuan chuan ong ((chong hai) OR (hong hai)) ;*.