Perhaps you should try some spelling variations:
thanh trung » thanh tung
trung tuan » trung thanh, trung tam, tran tuan
hieu xanh » chieu xanh, hieu manh, hieu nganh
tuan tong » toan tong, thuan trong, toan thong
doc hieu » toc thieu, hoc thieu, hoc hien
cong dan » cong san, cong tan, huong dan
cong tac » cong ty
than cau » toan cau, phan cau, than cap

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

• Performing a fuzzy search may retrieve terms with similar spellings: doc hieu xanh - thanh trung tuan tong ((cong dan) or (cong tac)) than cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doc hieu xanh - thanh trung tuan tong ((cong dan) OR (cong tac)) than cau.
• Adding a wildcard symbol may retrieve word variants: doc hieu xanh - thanh trung tuan tong ((cong dan) or (cong tac)) than cau*.