Perhaps you should try some spelling variations:
liang ying » liang liying, huang ying, zhang ying
yang yang » wang yang, wang yan
gang minh » sang minh, kang minah, anh minh
minh long » minh cong, vinh long
long do » long d, long du, longer do
yang i » yang di, yang xi, yang yi
i gang » ii gang, li gang, yi gang

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 yang) OR (liang ying)) yang i gang minh long do ;~.
• Adding a wildcard symbol may retrieve word variants: wang ((yang yang) or (liang ying)) yang i gang minh long do ;*.