Perhaps you should try some spelling variations:
tuan china » wuhan china, can china, taiwan china
yang wang » yan wang, yang guang, yang liang
yang yang » wang yang, wang yan
tan china » than china, can china, dan china
ren weng » den weg
weng yan » wang yan, wang yang, meng yuan
cong » congo, long, hong

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

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