Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu tinh
chieu sang » chieu sach, hieu lang, nhieu tang
thanh tung » thanh cong
hieu manh » hieu nganh, dieu hanh, hien hanh
nang nong » nang song, hang nong, nang dong
nong dan » cong dan, nong san, nguong dan
dan toan » van toan, dan than, manh toan
toan cau » toan cao, toan ban, toan tap
tung va » trung va, tuong va, dung va
va nang » van nang, da nang, cam nang

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho ((((chieu xanh) or (hieu manh))) or (chieu sang)) - thanh tung va nang nong dan toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((((chieu xanh) OR (hieu manh))) OR (chieu sang)) - thanh tung va nang nong dan toan cau.
• Adding a wildcard symbol may retrieve word variants: ho ((((chieu xanh) or (hieu manh))) or (chieu sang)) - thanh tung va nang nong dan toan cau*.