Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
nhanh lang » nhanh quang, nhanh thang, nhan dang
hieu lang » chieu sang, hieu quang, nhieu tang
lang cua » mang cua, hang cua, long cua
cua tong » cua cong, cua dong, cua nong
cong ban » cong bang, cong san, cong dan
cong tan » cong tac, cong san, cong thanh
phan cau » phan dau, phan cac, phan tu

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 (hieu lang)) - nhanh lang cua tong ((cong ban) OR (cong tan)) phan cau~.
• Adding a wildcard symbol may retrieve word variants: theo ((chieu sach) or (hieu lang)) - nhanh lang cua tong ((cong ban) or (cong tan)) phan cau*.