Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
doi chieu » doc hieu, doi chi, ho chieu
cua nhung » va nhung
hanh ban » thanh ban, hang ban, hanh san
cong dan » cong san, cong tan, huong dan
dan than » dan chan, ban than, van than
than tap » toan tap, han tap, phan tap
ban cua » ban quan

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((hoc hien) or (doi chieu)) sach - hanh ban cua nhung cong dan than tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc hien) OR (doi chieu)) sach - hanh ban cua nhung cong dan than tap.
• Adding a wildcard symbol may retrieve word variants: ((hoc hien) or (doi chieu)) sach - hanh ban cua nhung cong dan than tap*.