Perhaps you should try some spelling variations:
hanh tranh » canh tranh, hanh trinh, hanh trang
thieu xanh » chieu xanh, hieu manh, thien danh
thien anh » thien danh, tien anh, thien thanh
cua bang » chua bang, cua ban, cua hang
cua dang » cua cong, cua ban
cong san » cong tac
san toan » van toan, dan toan, 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 (thien anh)) - hanh tranh ((cua bang) or (cua dang)) cong san toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((thieu xanh) OR (thien anh)) - hanh tranh ((cua bang) OR (cua dang)) cong san toan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((thieu xanh) OR (thien anh)) - hanh tranh ((cua bang) or (cua dang)) cong san toan cau".
• Adding a wildcard symbol may retrieve word variants: hoc ((thieu xanh) OR (thien anh)) - hanh tranh ((cua bang) or (cua dang)) cong san toan cau*.