Perhaps you should try some spelling variations:
yang yang » wang yan
wang yang » wang yan, wang liang, wang yanling
cheng han » chen hao
wang ban » wang yan, wang dan, bang bang
hua wang » hwa wang, hua jiang, yuan wang
xi cheng » _ cheng, yi chen, li chen
tan hua » tuan hua, wang hua, tan chia
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 ban)) tan hua wang yang xi cheng han ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((yang yang) OR (wang ban)) tan hua wang yang xi cheng han ;*.