Perhaps you should try some spelling variations:
yuan chang » yuan cheng, huang chang, han chang
than china » tuan china, han china, wuhan china
tuan hua » tuan vu, yuan hui
yang jun » yang jui, pang jun, yang jin
jun song » jin song, yun song, hyun song
tan hua » wang hua, tan chia, tan puay
song yu » song yun, hong yu, rong yu

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

• Performing a fuzzy search may retrieve terms with similar spellings: yuan chang ((((tan hua) or (than china))) or (tuan hua)) rene yang jun song yu ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: yuan chang ((((tan hua) OR (than china))) OR (tuan hua)) rene yang jun song yu ;.
• Adding a wildcard symbol may retrieve word variants: yuan chang ((((tan hua) or (than china))) or (tuan hua)) rene yang jun song yu ;*.