Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
cong thanh » dong thanh, cong trinh, cong tan
hoc chieu » hoc thieu, ho chieu, hoc hien
hanh han » hanh nhan, hanh phan, hanh san
lao dong » ha dong, van dong
cong dan » cong san, cong tan, huong dan
han lao » ha lao, van lao, han gao

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: hoc chieu xanh - hanh han lao dong ((cong dan) or (cong thanh)) ((toan ban) or (van ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc chieu xanh - hanh han lao dong ((cong dan) OR (cong thanh)) ((toan ban) OR (van ban)).
• Adding a wildcard symbol may retrieve word variants: hoc chieu xanh - hanh han lao dong ((cong dan) or (cong thanh)) ((toan ban) or (van ban))*.