Perhaps you should try some spelling variations:
thieu xanh » thien anh, thien danh
chieu xanh » chieu sach, chieu sang, chieu tinh
hieu manh » hieu nganh, dieu hanh, hien hanh
tranh cua » doanh cua, manh cua
cua thong » cua thuong, cua khong, cua tong
thong dan » thong van, tuong dan, thong den
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.

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((((thieu xanh) or (chieu xanh))) or (hieu manh)) - canh tranh cua thong thong dan toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((((thieu xanh) OR (chieu xanh))) OR (hieu manh)) - canh tranh cua thong thong dan toan cau.
• Adding a wildcard symbol may retrieve word variants: hoc ((((thieu xanh) or (chieu xanh))) or (hieu manh)) - canh tranh cua thong thong dan toan cau*.