Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
chieu sach » chinh sach, chiet tach, chieu sang
doi chieu » doc hieu, doi chi, ho chieu
hanh manh » hanh mang, lanh manh, hoang manh
cua nhung » va nhung
chinh can » chinh ca, chinh ban, chinh cau
manh cua » doanh cua, ban cua
cong tan » cong tac, cong san, cong thanh
phan cau » phan dau, phan cac, phan tu

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 sach - hanh manh cua nhung cong tan ((chinh can) or (phan cau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu sach - hanh manh cua nhung cong tan ((chinh can) OR (phan cau)).
• Adding a wildcard symbol may retrieve word variants: doi chieu sach - hanh manh cua nhung cong tan ((chinh can) or (phan cau))*.