Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
hanh trinh » canh tranh, hanh chinh
hoc thieu » toc thieu, hoc hien
cong bang » cuong bang, dong bang, hong bang
bang than » bang thanh, ban than, sang than
cua dang » cua cong
than cau » toan cau, phan cau, than cap

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