Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
hieu manh » hieu nganh, dieu hanh, hien hanh
dang luan » tang luan, hang luan, dan luan
dong cong » duong cong, dung cong, dang cong
cong manh » cong danh, duong manh, cong thanh
manh toan » thanh toan, anh tuan, tinh toan
toan cau » toan cao, toan ban, toan tap

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi ((hieu manh) or (chieu xanh)) - phan ((dang luan) OR (dung luan)) dong cong manh toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi ((hieu manh) OR (chieu xanh)) - phan ((dang luan) OR (dung luan)) dong cong manh toan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi ((hieu manh) or (chieu xanh)) - phan ((dang luan) OR (dung luan)) dong cong manh toan cau".
• Adding a wildcard symbol may retrieve word variants: doi ((hieu manh) or (chieu xanh)) - phan ((dang luan) OR (dung luan)) dong cong manh toan cau*.