Perhaps you should try some spelling variations:
yanling wang » mankind wang
sang minh » kang minah, anh minh, song ming
shang hai » shang kai, dang hai, chang ha
song min » song ming, gong min, jong min
hong hai » zhong tai, dang hai, hong tan
wang a » wang _, fang a, lang a
a gene » a genre, a gender, a gentle

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 yanling wang a gene ((sang minh) OR (song min)) ((hong hai) OR (shang hai)) ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang yanling wang a gene ((sang minh) or (song min)) ((hong hai) OR (shang hai)) ;~".
• Adding a wildcard symbol may retrieve word variants: wang yanling wang a gene ((sang minh) or (song min)) ((hong hai) OR (shang hai)) ;*.