Perhaps you should try some spelling variations:
than china » tuan china, han china, wuhan china
chi chang » chin chang, chia chiang, china chang
chang won » chang soon, chang ann, chang min
wang dan » wang yan, wang ban, wang yidan
tan chia » tuan china, can china, dan china
jeong su » jeong _, jeong mi, jeong 情
yan chi » yan zhi, yang chik, wang chi

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 dan ((yan chi) OR (((tan chia) OR (than china)))) chi chang won ((jeong su) OR (cong shu)) ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang dan ((yan chi) or (((tan chia) OR (than china)))) chi chang won ((jeong su) or (cong shu)) ;~".
• Adding a wildcard symbol may retrieve word variants: wang dan ((yan chi) or (((tan chia) OR (than china)))) chi chang won ((jeong su) or (cong shu)) ;*.