Perhaps you should try some spelling variations:
yan liang » yang liang, wang liang, you liang
yang yang » wang yang, wang yan
cheng ton » cheng boon, chung tong, cheng han
duong van » cong van, duong anh
ton king » tong king, ton kino, john king
kong van » cong van, kong hang, kong land
a cheng » _ cheng, a chen, tan cheng

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "qian ((yan liang) OR (yang yang)) a cheng ton king ((kong van) OR (duong van)) ;~".
• Adding a wildcard symbol may retrieve word variants: qian ((yan liang) OR (yang yang)) a cheng ton king ((kong van) OR (duong van)) ;*.