Perhaps you should try some spelling variations:
chieu sach » chiet tach, chieu sang, chieu xanh
hanh trung » thanh trung, hanh trang, manh trung
cap thuong » chap thuong, ca thuong, cao thuong
cong dan » cong san, cong tan, huong dan
dan chat » van chat, dan chan, ban chat
chat ban » nhat ban, chat ran, cua ban

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) OR (chinh sach)) - hanh trung ((cap thuong) or (va thuong)) cong dan chat ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((chieu sach) OR (chinh sach)) - hanh trung ((cap thuong) OR (va thuong)) cong dan chat ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((chieu sach) OR (chinh sach)) - hanh trung ((cap thuong) or (va thuong)) cong dan chat ban".
• Adding a wildcard symbol may retrieve word variants: hoc ((chieu sach) OR (chinh sach)) - hanh trung ((cap thuong) or (va thuong)) cong dan chat ban*.