Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
hanh tranh » canh tranh, hanh trang, lanh tranh
hanh trinh » canh tranh, hanh chinh
hoc thieu » toc thieu, hoc hien
bang cong » dang cong, bang song, hang cong
cua bang » chua bang, cua ban, cua dang
dan toan » van toan, dan than, manh toan

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 - ((hanh tranh) or (hanh trinh)) cua bang cong ((dan toan) or (tinh toan)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu xanh - ((hanh tranh) OR (hanh trinh)) cua bang cong ((dan toan) OR (tinh toan)) cau.
• Adding a wildcard symbol may retrieve word variants: hoc thieu xanh - ((hanh tranh) or (hanh trinh)) cua bang cong ((dan toan) or (tinh toan)) cau*.