Perhaps you should try some spelling variations:
nhan tuong » nhan trong, nhan thong, nhan tong
chieu xanh » chieu sach, chieu sang, chieu tinh
tieu xanh » tieu danh, dieu hanh, tien anh
hanh tang » hanh trang, anh tang, hanh mang
tuong dan » huong dan, tung dan, xuong dan
cua nhan » ca nhan, cua ngan, cua nha
dan toan » van toan, dan than, manh toan
toan cau » toan cao, toan ban, toan tap

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

• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((tieu xanh) OR (chieu xanh)) - ((hanh tang) OR (canh tranh)) cua nhan tuong dan toan cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((tieu xanh) OR (chieu xanh)) - ((hanh tang) or (canh tranh)) cua nhan tuong dan toan cau~".
• Adding a wildcard symbol may retrieve word variants: theo ((tieu xanh) OR (chieu xanh)) - ((hanh tang) or (canh tranh)) cua nhan tuong dan toan cau*.