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
cong cong » cong dong, trong cong, dung cong
cong dan » cong san, cong tan, huong dan
dan chan » dan gian, dan ca, van chat
chan cau » phan cau, can cau, chinh 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 cong cong dan chan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu xanh - ((thanh trung) OR (thanh tung)) cua cong cong dan chan cau.
• Adding a wildcard symbol may retrieve word variants: hoc thieu xanh - ((thanh trung) or (thanh tung)) cua cong cong dan chan cau*.