Perhaps you should try some spelling variations:
yang yang » wang yang, wang yan
gang minh » sang minh, kang minah, anh minh
minh tong » minh cong, dinh tung, min hong
yan yang » yao yang, dan yang, tan yang
lili liu » lilik lia, liu liu
liu gang » liu gangs, liu yang, li gang
tong hui » wang hui

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

• Performing a fuzzy search may retrieve terms with similar spellings: (wing or lang) ((yan yang) or (yang yang)) lili liu gang minh tong hui ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (wing OR lang) ((yan yang) OR (yang yang)) lili liu gang minh tong hui ;*.