Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
chieu tinh » trieu tinh, lieu tinh, chau tinh
nhanh lang » nhanh quang, nhanh thang, nhan dang
cong cong » cong dong, trong cong, dung cong
lang cua » mang cua, hang cua, long cua
van tuan » van quan, anh tuan

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

• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chieu sach) OR (chieu tinh)) - nhanh lang cua cong cong ((van tuan) OR (van ban)) ban~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((chieu sach) or (chieu tinh)) - nhanh lang cua cong cong ((van tuan) OR (van ban)) ban~".
• Adding a wildcard symbol may retrieve word variants: theo ((chieu sach) or (chieu tinh)) - nhanh lang cua cong cong ((van tuan) OR (van ban)) ban*.