Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
doi chieu » doc hieu, doi chi, mot chieu
cua nhung » va nhung
ho chieu » theo chieu, hoc thieu, mot chieu
mang cua » manh cua, dung cua, ban cua
cong tan » cong tac, cong san, cong thanh
han tu » phan tu, hanh tu, van tu
ban tu » van tu

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