Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
thong cong » trong cong, tong cong, thong thong
cua chieu » cua chien, cua hieu, cua dieu
trung he » trong he, trung hieu, trung hien
trung ha » trung hoc, trung tam, trung cap
cong san » cong tac
phan cau » phan dau, phan cac, phan tu
than cap » khan cap, thanh lap, thanh cac

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

• Performing a fuzzy search may retrieve terms with similar spellings: cua chieu sach - thanh ((trung he) OR (trung ha)) thong cong san ((phan cau) or (than cap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: cua chieu sach - thanh ((trung he) OR (trung ha)) thong cong san ((phan cau) OR (than cap)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "cua chieu sach - thanh ((trung he) OR (trung ha)) thong cong san ((phan cau) or (than cap))".
• Adding a wildcard symbol may retrieve word variants: cua chieu sach - thanh ((trung he) OR (trung ha)) thong cong san ((phan cau) or (than cap))*.