Perhaps you should try some spelling variations:
john song » john wong, john bonn, john ngosong
minh long » minh cong, vinh long
yang yin » yang jin, yang lin, yang yun
kim song » kim young, kim eung
long shu » cong shu, tong shui, long du
yang yi » yang di, yang xi, yang jui
wang » wing, wan, lang

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 yan ((yang yin) OR (yang yi)) ((kim song) OR (john song)) minh long shu ;~.
• Adding a wildcard symbol may retrieve word variants: wang yan ((yang yin) or (yang yi)) ((kim song) or (john song)) minh long shu ;*.