Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
doi chieu » doi chi, ho chieu, mot chieu
cua nhung » va nhung
doc hieu » toc thieu, hoc thieu, hoc hien
hanh dan » thanh dan, hanh san, canh dan
cong san » cong tac
san than » sang than, san thanh, ban than
than cau » toan cau, phan cau, than cap
dan cua » dan ca, ban cua, dai cua

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

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