Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
nhung cong » dung cong, thong cong, hang cong
doi chieu » doc hieu, doi chi, ho chieu
cap nhung » cam nhung, vap nhung, dap nhung
cong tan » cong tac, cong san, cong thanh
than cap » thanh lap, thanh cac, than cua
khan cap » khan ap, khoan cam, phan cac

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 - ((thanh tung) or (thanh cong)) cap nhung cong tan ((than cap) or (khan cap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu sach - ((thanh tung) OR (thanh cong)) cap nhung cong tan ((than cap) OR (khan cap)).
• Adding a wildcard symbol may retrieve word variants: doi chieu sach - ((thanh tung) or (thanh cong)) cap nhung cong tan ((than cap) or (khan cap))*.