Perhaps you should try some spelling variations:
chiefs gender » chiefs under, childs gender, achieve gender
china gender » china under, child gender, childs gender
wang liang » wang yang
liang ying » liang liying, huang ying, zhang 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 liang ying ((china gender) OR (chiefs gender)) ((yang jin) or (song min)) dang hadi ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang liang ying ((china gender) OR (chiefs gender)) ((yang jin) OR (song min)) dang hadi ;.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang liang ying ((china gender) OR (chiefs gender)) ((yang jin) or (song min)) dang hadi ;".
• Adding a wildcard symbol may retrieve word variants: wang liang ying ((china gender) OR (chiefs gender)) ((yang jin) or (song min)) dang hadi ;*.