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 san, cong tan, huong dan
cong tac » cong ty

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 tac)) va cac~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((chieu sang) OR (chieu xanh)) - thanh tung cao bang ((cong dan) OR (cong tac)) va cac".
• Adding a wildcard symbol may retrieve word variants: theo ((chieu sang) OR (chieu xanh)) - thanh tung cao bang ((cong dan) OR (cong tac)) va cac*.