Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
trung tuan » trung thanh, trung tam, tran tuan
nhung cong » dung cong, thong cong, hang cong
truong ca » truong cao, truong va, trong ca
cong toan » cong tan, cong hoan, cong tuan
thanh cau » thanh chau, thanh mau, thanh ca
nhanh cau » nhanh cay, thanh chau, nhanh ha
ho chieu » theo chieu, hoc thieu, doi chieu

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 sach - thanh ((truong ca) or (trung tuan)) nhung cong toan ((thanh cau) OR (nhanh cau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sach - thanh ((truong ca) OR (trung tuan)) nhung cong toan ((thanh cau) OR (nhanh cau)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chieu sach - thanh ((truong ca) or (trung tuan)) nhung cong toan ((thanh cau) OR (nhanh cau))".
• Adding a wildcard symbol may retrieve word variants: ho chieu sach - thanh ((truong ca) or (trung tuan)) nhung cong toan ((thanh cau) OR (nhanh cau))*.