Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
hoc thieu » toc thieu, hoc hien
dong cong » duong cong, dung cong, dang cong
hang ban » hang luan, hang tai, hang dau
cua dong » chua dong, cua cong, cua dang
cong dan » cong san, cong tan, huong dan
dan than » dan chan, ban than, van than
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 - ((hang ban) OR (hang va)) cua dong cong dan than cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thieu xanh - ((hang ban) OR (hang va)) cua dong cong dan than cau".
• Adding a wildcard symbol may retrieve word variants: hoc thieu xanh - ((hang ban) OR (hang va)) cua dong cong dan than cau*.