Perhaps you should try some spelling variations:
thanh trung » thanh tung
theo chieu » theo tieu, theo chu, thi chieu
nhung cong » dung cong, thong cong, hang cong
trung cua » truong cua, trung tuan, trung cap
cua nhung » va nhung
tran tuan » tran xuan, tran thanh, tranh luan
ho chieu » hoc thieu, doi chieu, mot chieu
cong tac » cong ty
quang » quan

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((theo chieu) OR (ho chieu)) sach - thanh trung cua nhung cong tac ((tran tuan) or (tran quang))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((theo chieu) OR (ho chieu)) sach - thanh trung cua nhung cong tac ((tran tuan) OR (tran quang))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((theo chieu) OR (ho chieu)) sach - thanh trung cua nhung cong tac ((tran tuan) or (tran quang))*".