Perhaps you should try some spelling variations:
thieu xanh » hieu manh, thien anh
thien danh » thien anh, thien dang, thien thanh
chieu xanh » chieu sach, chieu sang, chieu tinh
hanh trang » thanh trung, canh tranh, hanh trinh
dung cong » dung trong
trang va » tran van, hang va
cong tan » cong tac, cong san, cong thanh
tran tan » tran tuan, tran van, tran thanh
va dung » van dung, va duong, vat dung

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) or (thien danh))) or (chieu xanh)) - hanh trang va dung cong tan tran tan~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((((thieu xanh) OR (thien danh))) OR (chieu xanh)) - hanh trang va dung cong tan tran tan.
• Adding a wildcard symbol may retrieve word variants: hoc ((((thieu xanh) or (thien danh))) or (chieu xanh)) - hanh trang va dung cong tan tran tan*.