Perhaps you should try some spelling variations:
thanh tung » thanh cong
thanh cac » hanh cac, thanh bac, thanh ca
ho chieu » theo chieu, hoc thieu, doi chieu
doc hieu » toc thieu, hoc thieu, hoc hien
tung cap » trung cap, cung cap, thong cap
cap hang » cap hoang, cap bang, cap han
cong san » cong tac

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((ho chieu) or (doc hieu)) sach - thanh tung cap hang ((cong san) or (huong dan)) thanh cac~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chieu) OR (doc hieu)) sach - thanh tung cap hang ((cong san) OR (huong dan)) thanh cac.
• Adding a wildcard symbol may retrieve word variants: ((ho chieu) or (doc hieu)) sach - thanh tung cap hang ((cong san) or (huong dan)) thanh cac*.