Perhaps you should try some spelling variations:
minh thanh » binh thanh, binh thang
yang guang » yang yang, yan guan
yang liang » wang liang, yan liang, yang yang
guang sing » muang sing
wei guang » wei shang, wei qiang, fei huang
sing kong » king kong, hong kong
kong your » kong young, knowing your
yan yuan » yan guan, fang yuan, nan yan

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: minh thanh ((((yang guang) OR (yang liang))) OR (yan yuan)) wei guang sing kong your ;~.
• Adding a wildcard symbol may retrieve word variants: minh thanh ((((yang guang) or (yang liang))) or (yan yuan)) wei guang sing kong your ;*.