Perhaps you should try some spelling variations:
thanh trung » thanh tung
theo chieu » theo tieu, ho chieu, theo chu
hoc thieu » toc thieu, hoc hien
trung cau » trung cap, trung ca, trung can
dong cong » duong cong, dung cong, dang cong
cau dong » cau duong, cau cong, cao dong
cong tac » cong ty
tac tran » tan tran, tac trai, tac tren
tran huu » tran duc

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((theo chieu) or (hoc thieu)) tinh - thanh trung cau dong cong tac tran huu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((theo chieu) OR (hoc thieu)) tinh - thanh trung cau dong cong tac tran huu.
• Adding a wildcard symbol may retrieve word variants: ((theo chieu) or (hoc thieu)) tinh - thanh trung cau dong cong tac tran huu*.