Perhaps you should try some spelling variations:
thanh trung » thanh tung
tieu xanh » tieu danh, chieu xanh, dieu hanh
trung ha » trung hoc, trung tam, trung cap
cong tan » cong san, cong thanh, cong ty
cong tac » cong ty
bang cau » hang cau, bang cac, nang cao
ha dong » hoat dong, van dong

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

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