Perhaps you should try some spelling variations:
thanh trong » thanh trung, tranh trong, hanh trong
chieu xanh » chieu sach, chieu sang, chieu tinh
thien anh » thien danh, tien anh, thien thanh
trong san » trong cac, dong san, trong ca
dung cong » dung trong
san dung » van dung, dan dung, lan dung
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 ((((dieu hanh) or (chieu xanh))) or (thien anh)) - thanh trong san dung cong san toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((((dieu hanh) OR (chieu xanh))) OR (thien anh)) - thanh trong san dung cong san toan cau.
• Adding a wildcard symbol may retrieve word variants: hoc ((((dieu hanh) or (chieu xanh))) or (thien anh)) - thanh trong san dung cong san toan cau*.