Perhaps you should try some spelling variations:
chang chuan » chung chuan, chen chuan, chang ch'un
chuan chang » chin chang, chuan bang, huang chang
luong thanh » long thanh, truong thanh
chuang hui » chun hui, zhang hui
han chang » huang chang, than change, can change
chuan hua » chuan fa, chun hui, tuan hua
wang han » wang yan, kang han, wang ban
hong hai » shang hai, zhong tai, dang hai

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 han chang chuan chang ((chuan hua) OR (chuang hui)) ((hong hai) OR (luong thanh)) ;~.
• Adding a wildcard symbol may retrieve word variants: wang han chang chuan chang ((chuan hua) or (chuang hui)) ((hong hai) or (luong thanh)) ;*.