Perhaps you should try some spelling variations:
yang yang » wang yang, wang yan
tan china » tuan china, than china, can china
china how » china hong
how ying » how young, how doing, how big
ying ka » yang ka, ying hua
ka long » a long, day long
long du » long d, long do, long run

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((yang (liang or jiang)) or (yang yang)) tan china how ying ka long du ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((yang (liang OR jiang)) OR (yang yang)) tan china how ying ka long du ;*.