Perhaps you should try some spelling variations:
chung chuan » chen chuan
wang liang » wang yang
long trinh » long trip, long thanh
chuan yong » chen yong, chuan bang
yang yang » wang yang, wang yan
yong dong » jeng dong
dong di » dong sin
sind » find, wind, kind

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((long trinh) or (dong di)) ((yang yang) or (wang liang)) chung chuan yong dong (sin OR sind) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((long trinh) OR (dong di)) ((yang yang) OR (wang liang)) chung chuan yong dong (sin OR sind) ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((long trinh) or (dong di)) ((yang yang) or (wang liang)) chung chuan yong dong (sin OR sind) ;*".