Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
hoan thanh » hoang thanh, ban thanh, van thanh
thanh bang » thanh hang, thanh ban, thanh hoang
thien anh » thien danh, tien anh, thien thanh
manh hoan » manh toan, manh hon, minh hoang
bang cong » dang cong, bang song, hang cong
cong san » cong tac
san toan » van toan, dan toan, manh 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 ((chieu xanh) or (thien anh)) - manh hoan thanh bang cong san toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((chieu xanh) OR (thien anh)) - manh hoan thanh bang cong san toan cau.
• Adding a wildcard symbol may retrieve word variants: hoc ((chieu xanh) or (thien anh)) - manh hoan thanh bang cong san toan cau*.