Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
thanh tung » thanh cong
nhung cong » dung cong, thong cong, hang cong
toc chieu » toc thieu, doc hieu, hoc thieu
dang cong » dung cong
tung cap » trung cap, cung cap, thong cap
than cau » toan cau, than cap, thanh chau
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: toc chieu sach - thanh tung cap ((nhung cong) or (dang cong)) dan ((than cau) or (phan cau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc chieu sach - thanh tung cap ((nhung cong) OR (dang cong)) dan ((than cau) OR (phan cau)).
• Adding a wildcard symbol may retrieve word variants: toc chieu sach - thanh tung cap ((nhung cong) or (dang cong)) dan ((than cau) or (phan cau))*.