Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu xanh
chieu sang » chieu xanh, hieu lang, nhieu tang
canh trang » canh tranh, hanh trang, banh trang
thanh chau » thanh cha, thanh cham, thanh chu
trang van » tran van, trang va, trong van
nang cong » nang song, dang cong, bang cong
van nang » van quang, van ban, van dong
cong dan » cong san, cong tan, huong dan
phan cau » phan dau, phan cac, phan tu

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 sach) or (chieu sang)) - canh trang van nang cong dan ((thanh chau) or (phan cau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chieu sach) OR (chieu sang)) - canh trang van nang cong dan ((thanh chau) OR (phan cau)).
• Adding a wildcard symbol may retrieve word variants: theo ((chieu sach) or (chieu sang)) - canh trang van nang cong dan ((thanh chau) or (phan cau))*.