Perhaps you should try some spelling variations:
thanh trung » thanh tung
hanh trang » canh tranh, hanh trinh, minh trang
luan thong » luan phong, luan tuong, luat thong
tieu xanh » tieu danh, chieu xanh, dieu hanh
cong tac » cong ty
tac toan » tap toan, tam toan, hach 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: theo tieu xanh - ((hanh trang) OR (thanh trung)) ((luan thong) or (hai phong)) cong tac toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo tieu xanh - ((hanh trang) OR (thanh trung)) ((luan thong) OR (hai phong)) cong tac toan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo tieu xanh - ((hanh trang) OR (thanh trung)) ((luan thong) or (hai phong)) cong tac toan cau".
• Adding a wildcard symbol may retrieve word variants: theo tieu xanh - ((hanh trang) OR (thanh trung)) ((luan thong) or (hai phong)) cong tac toan cau*.