Perhaps you should try some spelling variations:
thieu xanh » hieu manh, thien anh, thien danh
thien dang » thien bang, thien danh, thien nang
chieu xanh » chieu sach, chieu sang, chieu tinh
manh trung » manh tung, thanh trung, manh hung
dong cong » duong cong, dung cong, dang cong
tam dong » tam duong, tac dong, lam dong
cong tan » cong tac, cong san, cong thanh
tan toan » tan tran, tap toan, van toan
toan cau » toan cao, toan ban, toan tap

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 dang))) or (chieu xanh)) - manh trung tam dong cong tan toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((((thieu xanh) OR (thien dang))) OR (chieu xanh)) - manh trung tam dong cong tan toan cau.
• Adding a wildcard symbol may retrieve word variants: hoc ((((thieu xanh) or (thien dang))) or (chieu xanh)) - manh trung tam dong cong tan toan cau*.