Perhaps you should try some spelling variations:
thanh hang » thanh hoang, thanh thang, thanh hung
tranh hang » trinh han, tran hoang, tran hong
cho thuc » choi thuc, cho thue, co thuc
cong dan » cong san, huong dan, cong dong
cong tan » cong tac, cong san, cong thanh
toan cao » toan ban, toan tap
ca hang » cua hang, ca chang, va hang

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

• Performing a fuzzy search may retrieve terms with similar spellings: cho thuc hanh - ((thanh hang) or (tranh hang)) ca hang ((cong dan) or (cong tan)) toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: cho thuc hanh - ((thanh hang) OR (tranh hang)) ca hang ((cong dan) OR (cong tan)) toan cao.
• Adding a wildcard symbol may retrieve word variants: cho thuc hanh - ((thanh hang) or (tranh hang)) ca hang ((cong dan) or (cong tan)) toan cao*.