Perhaps you should try some spelling variations:
thanh trung » thanh tung
trung tuan » trung thanh, trung tam, tran tuan
chung dung » nhung dung, phung dung, chuong duong
hoc thieu » toc thieu, hoc hien
cung dung » cuong dung, ung dung, cung ung
doc hieu » toc thieu, hoc hien
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 thieu)) xanh - thanh trung tuan ((chung dung) OR (cung dung)) tinh toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((doc hieu) OR (hoc thieu)) xanh - thanh trung tuan ((chung dung) OR (cung dung)) tinh toan ban*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((doc hieu) or (hoc thieu)) xanh - thanh trung tuan ((chung dung) OR (cung dung)) tinh toan ban*".