Perhaps you should try some spelling variations:
chieu sang » chieu sach, hieu lang, nhieu tang
chieu xanh » chieu sach, chieu tinh, hieu manh
thanh tung » thanh cong
tung cao » nung cao, truong cao, trung cap
cao bang » cao dang, cao tang, cao nang
cong dan » cong tan, huong dan, cong dong
cong san » cong tac

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)) - thanh tung cao bang ((cong dan) or (cong san)) va cac~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chieu sang) OR (chieu xanh)) - thanh tung cao bang ((cong dan) OR (cong san)) va cac.
• Adding a wildcard symbol may retrieve word variants: theo ((chieu sang) or (chieu xanh)) - thanh tung cao bang ((cong dan) or (cong san)) va cac*.