Perhaps you should try some spelling variations:
china lehren » china loren, china ren
than china » tuan china, han china, wuhan china
yan than » van thanh, yan zhang, yan clan
yang jun » yang jui, yang jin, yang judy
pang jun » yang jui
yang xi » yang di, yang jui
yang yi » yang di, yang jui
wang » wing, wan, lang

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

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