Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
thanh tung » thanh cong
hoc thieu » toc thieu, hoc hien
cua dung » cua dang, cua dong, cua rung
qua dung » quang dung, su dung, qua song
cong san » cong tac
san tuan » van tuan, san luan, san quan
tuan cau » toan cau, quan cau, tuan cu

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu xanh - ((thanh trung) OR (thanh tung)) ((cua dung) OR (qua dung)) cong san tuan cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thieu xanh - ((thanh trung) or (thanh tung)) ((cua dung) OR (qua dung)) cong san tuan cau~".
• Adding a wildcard symbol may retrieve word variants: hoc thieu xanh - ((thanh trung) or (thanh tung)) ((cua dung) OR (qua dung)) cong san tuan cau*.