Perhaps you should try some spelling variations:
thanh trung » thanh tung
trung tuan » trung thanh, trung tam, tran tuan
thi chieu » thi chien, thi hieu, theo chieu
tuan cong » thuan cong, luan cong, tran cong
dong tai » dung tai, luong tai, cong tac
tai toan » bai toan, tap toan, tai tuan
toan cau » toan cao, toan ban, toan tap

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

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