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

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

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