Perhaps you should try some spelling variations:
yang liang » wang liang, yan liang, yang yang
wang yang » wang yan, wang liang, wang yanling
liang hua » wang hua, liang sun, liang zhu
yuen ping » chen ping, fun ping, xue ping
ping john » king john, kong john, wong john
kong sara » kong sar
hua yuen » ho yuen, hua chen, hua ren
von sam » von sap, von sach
von sa » von sap, von sl, von sach

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: wang yang liang hua yuen ping john ((((((von sam) OR (von sa))) OR (von scham))) OR (kong sara)) ;~.
• Adding a wildcard symbol may retrieve word variants: wang yang liang hua yuen ping john ((((((von sam) or (von sa))) or (von scham))) or (kong sara)) ;*.