Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
ho chieu » theo chieu, hoc thieu, doi chieu
tong dan » tuong dan, thong dan, trong dan
than cau » phan cau, than cap, thanh chau
toan cau » toan cao, toan ban, toan tap
thanh » tphanh, tnhanh, thanhh
han » phan, nhan, hanh
than » tphan, tnhan, thanh

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 cao) or (truong dai)) han tong dan ((than cau) or (toan cau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sach - thanh ((truong cao) OR (truong dai)) han tong dan ((than cau) OR (toan cau)).
• Adding a wildcard symbol may retrieve word variants: ho chieu sach - thanh ((truong cao) or (truong dai)) han tong dan ((than cau) or (toan cau))*.