Perhaps you should try some spelling variations:
kang minah » sang minh
wang ning » wang jing, wang liang, wang yang
yang minh » sang minh, anh minh, yang jin
yang mind » yang cindy, yang jin, sang minh
yaa hua » ya hua
hua ren » hua chen
cong yu » hong yu, rong yu, chong yun

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) OR (wang ning)) yaa hua ren ((((yang minh) OR (yang mind))) OR (kang minah)) cong yu ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((wang yan) or (wang ning)) yaa hua ren ((((yang minh) OR (yang mind))) or (kang minah)) cong yu ;~".
• Adding a wildcard symbol may retrieve word variants: ((wang yan) or (wang ning)) yaa hua ren ((((yang minh) OR (yang mind))) or (kang minah)) cong yu ;*.