Perhaps you should try some spelling variations:
chieu sang » chieu sach, hieu lang, nhieu tang
chieu xanh » chieu sach, chieu tinh, hieu manh
hanh trung » thanh trung, hanh trang, manh trung
trung tuan » trung thanh, trung tam, tran tuan
tuan tong » toan tong, thuan trong, toan thong
cong dan » cong san, huong dan, cong dong
cong tan » cong tac, cong san, cong thanh

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 xanh)) - hanh trung tuan tong ((cong dan) or (cong tan)) phan tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chieu sang) OR (chieu xanh)) - hanh trung tuan tong ((cong dan) OR (cong tan)) phan tu.
• Adding a wildcard symbol may retrieve word variants: theo ((chieu sang) or (chieu xanh)) - hanh trung tuan tong ((cong dan) or (cong tan)) phan tu*.