Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
hanh trung » thanh trung, hanh trang, manh trung
hoc chieu » hoc thieu, ho chieu, hoc hien
cap nhung » cam nhung, vap nhung, canh nhung
dap nhung » vap nhung, va nhung, dap ung
dan than » dan chan, ban than, van than

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: hoc chieu sach - hanh trung ((cap nhung) OR (dap nhung)) cong ((xuan toan) or (dan than)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc chieu sach - hanh trung ((cap nhung) OR (dap nhung)) cong ((xuan toan) OR (dan than)) cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc chieu sach - hanh trung ((cap nhung) OR (dap nhung)) cong ((xuan toan) or (dan than)) cau".
• Adding a wildcard symbol may retrieve word variants: hoc chieu sach - hanh trung ((cap nhung) OR (dap nhung)) cong ((xuan toan) or (dan than)) cau*.