Perhaps you should try some spelling variations:
thanh trung » thanh tung
cua thuong » cua truong, cua phuong, ca thuong
cua thong » cua khong, cua tong, suat thong
khi xanh » khia canh, thi hanh, thi anh
cong tac » cong ty
tac than » tac thanh, tam than, tac nhan
than cap » khan cap, thanh lap, thanh cac

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: doi khi xanh - thanh trung ((cua thong) OR (cua thuong)) cong tac than cap~.
• Adding a wildcard symbol may retrieve word variants: doi khi xanh - thanh trung ((cua thong) or (cua thuong)) cong tac than cap*.