Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
hanh tinh » hanh trinh, nhanh tinh, thanh tinh
quang han » quang chan, quang hanh, quang hoan
tuong dan » huong dan, tung dan, truong dai
xuong dan » huong dan, xuong san, nguong dan
ho chieu » theo chieu, hoc thieu, doi chieu
toan cau » toan cao, toan tap, toan tai
toan ban » van ban

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 - hanh tinh quang han ((tuong dan) OR (xuong dan)) ((toan cau) or (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sach - hanh tinh quang han ((tuong dan) OR (xuong dan)) ((toan cau) OR (toan ban)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chieu sach - hanh tinh quang han ((tuong dan) OR (xuong dan)) ((toan cau) or (toan ban))".
• Adding a wildcard symbol may retrieve word variants: ho chieu sach - hanh tinh quang han ((tuong dan) OR (xuong dan)) ((toan cau) or (toan ban))*.