Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
thanh cung » thanh cuong, thanh cong, thanh tung
cap nhung » cam nhung, vap nhung, canh nhung
dap nhung » vap nhung, va nhung, dap ung
ho chieu » theo chieu, hoc thieu, doi chieu
cong dan » cong san, huong dan, cong dong
cong tan » cong tac, cong san, cong thanh
than cau » toan cau, phan cau, than cap

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