Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
trinh quan » tinh quang, trinh luat, trinh han
cong thanh » dong thanh, cong trinh, cong tan
trinh cua » tinh cua, trinh luat, trinh luan
ho chieu » theo chieu, hoc thieu, doi chieu
hong anh » hoang anh, hong hanh, dong anh
tuan cau » toan cau, quan cau, tuan cu

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