Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu xanh
chieu sang » chieu xanh, hieu lang, nhieu tang
canh hanh » xanh hanh, canh tranh, danh thanh
dang cong » dung cong
cong dan » cong san, cong tan, huong dan
toan ban » van ban
hanh va » hang va, hanh vi
va dang » van dang, va nang, va lang

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) or (chieu sang)) - canh hanh va dang cong dan ((toan tap) or (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu sach) OR (chieu sang)) - canh hanh va dang cong dan ((toan tap) OR (toan ban)).
• Adding a wildcard symbol may retrieve word variants: ho ((chieu sach) or (chieu sang)) - canh hanh va dang cong dan ((toan tap) or (toan ban))*.