Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
manh trung » thanh trung, manh hung, sinh trung
tieu xanh » tieu danh, dieu hanh, tien anh
manh tung » manh hung, thanh tung
dung cong » dung trong
hoc dung » hoc ung, hoc dan, tac dung
cong tan » cong tac, cong san, cong thanh
tran cau » tran chau, toan cau, ran cau

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo ((tieu xanh) or (chieu xanh)) - ((manh trung) OR (manh tung)) hoc dung cong tan tran cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((tieu xanh) OR (chieu xanh)) - ((manh trung) OR (manh tung)) hoc dung cong tan tran cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((tieu xanh) or (chieu xanh)) - ((manh trung) OR (manh tung)) hoc dung cong tan tran cau".
• Adding a wildcard symbol may retrieve word variants: theo ((tieu xanh) or (chieu xanh)) - ((manh trung) OR (manh tung)) hoc dung cong tan tran cau*.