Perhaps you should try some spelling variations:
chieu sang » chieu sach, chieu xanh, hieu lang
hien xanh » hien hanh, hien nhanh, chieu xanh
nang dang » nang sang, nang dong, nang hang
trong san » trong cac, cong san, dong san
san than » sang than, san thanh, ban than
than cau » toan cau, phan cau, than cap

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((hien xanh) or (chieu sang)) - nang dang su dung trong san than cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((hien xanh) OR (chieu sang)) - nang dang su dung trong san than cau.
• Adding a wildcard symbol may retrieve word variants: hoc ((hien xanh) or (chieu sang)) - nang dang su dung trong san than cau*.