Perhaps you should try some spelling variations:
china gender » china under, child gender, chiefs gender
wang zhang » wang zheng, wang luhang, zhang zhang
zhang ying » zhang ming, zhang jing, zhang ping
ying china » ming china, qing china, buying china
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 zhang ying china gender ((yang jin) or (song min)) dang hadi ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang zhang ying china gender ((yang jin) OR (song min)) dang hadi ;.
• Adding a wildcard symbol may retrieve word variants: wang zhang ying china gender ((yang jin) or (song min)) dang hadi ;*.