Perhaps you should try some spelling variations:
china gender » china under, child gender, chiefs gender
ying china » ming china, qing china, buying china
wang yang » wang yan, wang liang, wang yanling
yang ying » yang yang, yang jing, huang ying
dang hadi » dang hai
yang jin » yang jie, yang jun, ying jin
song min » song ming, gong min, jong min

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

• Performing a fuzzy search may retrieve terms with similar spellings: wang yang ying china gender ((yang jin) or (song min)) dang hadi ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang yang ying china gender ((yang jin) OR (song min)) dang hadi ;.
• Adding a wildcard symbol may retrieve word variants: wang yang ying china gender ((yang jin) or (song min)) dang hadi ;*.