Perhaps you should try some spelling variations:
thanh trung » thanh tung
trung tuan » trung thanh, trung tam, tran tuan
tuan cung » tuan dung, tuan hung, tuan duong
cung dung » cuong dung, ung dung, cung ung
dung tinh » dang tinh, dung ninh, dung tin
doc hieu » toc thieu, hoc thieu
toan ban » van ban

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) or (hoc hien)) xanh - thanh trung tuan cung dung tinh toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((doc hieu) OR (hoc hien)) xanh - thanh trung tuan cung dung tinh toan ban.
• Adding a wildcard symbol may retrieve word variants: ((doc hieu) or (hoc hien)) xanh - thanh trung tuan cung dung tinh toan ban*.