Perhaps you should try some spelling variations:
chieu sang » chieu xanh, hieu lang, nhieu tang
chieu sach » chinh sach, chiet tach, chieu xanh
nhanh hanh » nhanh thanh, nhanh thang, thanh thanh
duong cong » dung cong, luong cong, duong trong
cong dang » cong dong, cong dan, cong dung
va duong » van duong, va tuong, va huong
toan ban » van ban
hanh va » hang va, hanh vi

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo ((chieu sang) or (chieu sach)) - nhanh hanh va duong cong dang ((toan tap) OR (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chieu sang) OR (chieu sach)) - nhanh hanh va duong cong dang ((toan tap) OR (toan ban)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((chieu sang) or (chieu sach)) - nhanh hanh va duong cong dang ((toan tap) OR (toan ban))".
• Adding a wildcard symbol may retrieve word variants: theo ((chieu sang) or (chieu sach)) - nhanh hanh va duong cong dang ((toan tap) OR (toan ban))*.