Perhaps you should try some spelling variations:
thanh trung » thanh tung
trung tuan » trung thanh, trung tam, tran tuan
tuan khong » toan khong, tuan phong, thuan phong
tieu xanh » tieu danh, chieu xanh, dieu hanh
cang ban » hang ban, nang ban, lang ban
hanh cac » hang cac, hanh cat, nhanh cay
can ban » van ban, toan ban

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 tuan khong ((cang ban) or (can ban)) hanh cac~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo tieu xanh - thanh trung tuan khong ((cang ban) OR (can ban)) hanh cac*.