Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
thong cong » trong cong, tong cong, thong thong
sang thanh » dang thanh, tang thanh, nang thanh
cua thong » cua thuong, cua khong, cua tong
sang than » cang thang, dang thanh, sang tao
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 tung) OR (thanh cong)) cua thong cong ((sang than) or (sang thanh)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sach - ((thanh tung) OR (thanh cong)) cua thong cong ((sang than) OR (sang thanh)) cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chieu sach - ((thanh tung) OR (thanh cong)) cua thong cong ((sang than) or (sang thanh)) cau".
• Adding a wildcard symbol may retrieve word variants: ho chieu sach - ((thanh tung) OR (thanh cong)) cua thong cong ((sang than) or (sang thanh)) cau*.