Perhaps you should try some spelling variations:
yang wang » yang yang, yan wang, yang guang
wang yang » wang yan, wang liang, wang yanling
yang minh » yang mind, kang minah, anh minh
sang minh » kang minah, anh minh, song ming
yang hua » wang hua, yang hui, ying hua
song min » song ming, gong min, jong min
hua yao » hua xiao, hua zhao

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: yang wang yang hua yao ((yang minh) OR (((sang minh) OR (song min)))) cong shu ;~.
• Adding a wildcard symbol may retrieve word variants: yang wang yang hua yao ((yang minh) or (((sang minh) or (song min)))) cong shu ;*.