Perhaps you should try some spelling variations:
yang yang » wang yan
wang yang » wang yan, wang liang, wang yanling
tan juan » san juan, don juan, tan hua
tan chia » tuan china, than china, can china
wang tin » wang qin, wang jing, wang ning
wang lin » wang li, wang qin, yang lin
hong yu » wong yue

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)) ((tan juan) or (tan chia)) ping ((wang tin) OR (wang lin)) hong yu ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((yang yang) OR (wang yang)) ((tan juan) OR (tan chia)) ping ((wang tin) OR (wang lin)) hong yu ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((yang yang) or (wang yang)) ((tan juan) or (tan chia)) ping ((wang tin) OR (wang lin)) hong yu ;*".