Perhaps you should try some spelling variations:
thanh tung » thanh cong
doi chieu » doi chi, ho chieu, mot chieu
cong cong » cong dong, trong cong, dung cong
doc hieu » toc thieu, hoc thieu, hoc hien
tung cua » trung cua, tuong cua, dung cua
cong tan » cong tac, cong san, cong thanh
than ban » thanh ban, toan ban, nhuan ban
than man » than ma, thanh san, tran manh

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

• If you are trying to use Boolean operators, they must be ALL CAPS: ((doi chieu) OR (doc hieu)) sach - thanh tung cua cong cong tan ((than ban) OR (than man))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((doi chieu) or (doc hieu)) sach - thanh tung cua cong cong tan ((than ban) OR (than man))~".
• Adding a wildcard symbol may retrieve word variants: ((doi chieu) or (doc hieu)) sach - thanh tung cua cong cong tan ((than ban) OR (than man))*.