Perhaps you should try some spelling variations:
china gender » china under, child gender, chiefs gender
yuan china » tuan china, yunnan china, wuhan china
wing yan » wang yan, wing ian, wing tan
yan yuan » yan guan, fang yuan, nan yan
yang jui » yang judy, yang xi, yang yi
von sam » von sa, von sap, von scham
lai » laid

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

• If you are trying to use Boolean operators, they must be ALL CAPS: wing yan yuan china gender ((yang jui) OR (yang di)) ((von sam) OR (wong lai)) ;~.
• Adding a wildcard symbol may retrieve word variants: wing yan yuan china gender ((yang jui) or (yang di)) ((von sam) or (wong lai)) ;*.