Perhaps you should try some spelling variations:
than china » tuan china, han china, wuhan china
yang yang » wang yan
wang yang » wang yan, wang liang, wang yanling
china ren » china loren, china real, china reza
yang jie » yang di, yang jui, yang yi
yang jin » yang jun, ying jin, shang jin
yang xi » yang di, yang yi, yang jui

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((yang yang) OR (wang yang)) than china ren ((((yang jie) or (yang xi))) or (yang jin)) cong shu ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((yang yang) OR (wang yang)) than china ren ((((yang jie) OR (yang xi))) OR (yang jin)) cong shu ;.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((yang yang) OR (wang yang)) than china ren ((((yang jie) or (yang xi))) or (yang jin)) cong shu ;".
• Adding a wildcard symbol may retrieve word variants: ((yang yang) OR (wang yang)) than china ren ((((yang jie) or (yang xi))) or (yang jin)) cong shu ;*.