Perhaps you should try some spelling variations:
than china » tuan china, han china, wuhan china
yuan wang » yan wang, yuan kang, yuan chang
yang yang » wang yang, wang yan
yang fan » zhang fan, yang dean, yang jin
fan long » fan along, van long, pain long
long du » long d, long do, long run
h yang » _ yang, hui yang

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((yuan wang) or (yang yang)) ((wang hua) or (than china)) h yang fan long du ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((yuan wang) OR (yang yang)) ((wang hua) OR (than china)) h yang fan long du ;*.