Perhaps you should try some spelling variations:
tuan china » wuhan china, can china, taiwan china
yang yang » wang yang, wang yan
tuan hua » tan hua, tuan vu, yuan hui
wang qin » wang lin, wang qiao, wang jing
yang jin » yang jie, yang jun, ying jin
wai yan » wang yan, wei yang
hai » hadi, haji, hari

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

• Performing a fuzzy search may retrieve terms with similar spellings: wai yan ((tuan hua) or (tuan china)) gain ((((yang yang) or (wang qin))) or (yang jin)) dang hai ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wai yan ((tuan hua) OR (tuan china)) gain ((((yang yang) OR (wang qin))) OR (yang jin)) dang hai ;.
• Adding a wildcard symbol may retrieve word variants: wai yan ((tuan hua) or (tuan china)) gain ((((yang yang) or (wang qin))) or (yang jin)) dang hai ;*.