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
dung cong » dung trong
cua dung » cua dang, cua dong, qua dung
cong san » cong tac
san tran » tan tran, ban tran, dang tran
tran cau » tran chau, toan cau, ran cau

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 trung) or (thanh tung)) cua dung cong san tran cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu xanh - ((thanh trung) OR (thanh tung)) cua dung cong san tran cau.
• Adding a wildcard symbol may retrieve word variants: hoc thieu xanh - ((thanh trung) or (thanh tung)) cua dung cong san tran cau*.