Perhaps you should try some spelling variations:
thanh trung » thanh tung
nhung cong » dung cong, thong cong, hang cong
hoc thiet » hoc thieu, hoc thuyet, hoc hien
trung van » truong van, trong van, trung va
van nhung » van nhuong, va nhung, van hung
ban thanh » ban hanh, ban hang
thanh cap » thanh lap, hanh cap, than cap
hoc chat » hoc phat, hoc cao, hoc phan
cong ban » cong bang, cong san, cong tan

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((hoc thiet) or (hoc chat)) tach - thanh trung van nhung cong ban thanh cap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc thiet) OR (hoc chat)) tach - thanh trung van nhung cong ban thanh cap*.