Perhaps you should try some spelling variations:
twinn nana » twinn ian
sang minh » kang minah, anh minh, song min
shang hai » shang kai, dang hai, chang ha
nana yaa » nan ya, nan yan, nanay a
ying jin » yang jin, jing ji, yang jie
yaa hua » ya hua
hua ren » hua chen

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: twinn nana yaa hua ren ((sang minh) or (ying jin)) shang hai ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: twinn nana yaa hua ren ((sang minh) OR (ying jin)) shang hai ;.
• Adding a wildcard symbol may retrieve word variants: twinn nana yaa hua ren ((sang minh) or (ying jin)) shang hai ;*.