Perhaps you should try some spelling variations:
china chang » chin chang, china zhang, china changqi
than china » tuan china, han china, wuhan china
chang minh » chang min, zhang ming, chan ming
yan tuan » yan yuan, anh tuan, can turn
yan guan » gan guan, yan yuan, yang guang
cong sun » cong van, wing sun

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

• Performing a fuzzy search may retrieve terms with similar spellings: wing ((yan tuan) or (yan guan)) than china chang minh ((cong sun) or (cong shu)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wing ((yan tuan) OR (yan guan)) than china chang minh ((cong sun) OR (cong shu)) ;.
• Adding a wildcard symbol may retrieve word variants: wing ((yan tuan) or (yan guan)) than china chang minh ((cong sun) or (cong shu)) ;*.