Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien danh
thien anh » thien danh, tien anh, thien thanh
manh tran » manh toan, manh tuan, canh tranh
tran tuan » tran xuan, tran quang, tran thanh
tuan hung » tran hung, luan hung, tuan dung
cong tac » cong ty
toan cau » toan cao, toan ban, toan tap

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((thieu xanh) OR (thien anh)) - manh tran tuan hung ((cong san) OR (cong tac)) toan cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((thieu xanh) OR (thien anh)) - manh tran tuan hung ((cong san) or (cong tac)) toan cau~".
• Adding a wildcard symbol may retrieve word variants: hoc ((thieu xanh) OR (thien anh)) - manh tran tuan hung ((cong san) or (cong tac)) toan cau*.