Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
thanh tran » thanh trang, thanh toan, thanh tra
hoc thieu » toc thieu, hoc hien
van nhung » van nhuong, va nhung, van hung
cong bang » cuong bang, dong bang, cong lang
hong bang » dong bang, hang ban, hong hanh
tran van » luan van
cong ban » cong san, cong tan, cong dan
thoi cac » thoai cac, tho cac, hoi cac

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 - thanh tran van nhung ((cong ban) or (((cong bang) OR (hong bang)))) thoi cac~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu xanh - thanh tran van nhung ((cong ban) OR (((cong bang) OR (hong bang)))) thoi cac.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thieu xanh - thanh tran van nhung ((cong ban) or (((cong bang) OR (hong bang)))) thoi cac".
• Adding a wildcard symbol may retrieve word variants: hoc thieu xanh - thanh tran van nhung ((cong ban) or (((cong bang) OR (hong bang)))) thoi cac*.