Perhaps you should try some spelling variations:
nhung cong » thong cong, hang cong, nhung don
hanh trang » thanh trung, canh tranh, hanh trinh
tieu xanh » tieu danh, chieu xanh, tien anh
dung cong » dung trong
manh toan » thanh toan, anh tuan, tinh toan
trang va » tran van, hang va
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: theo ((tieu xanh) or (dieu hanh)) - hanh trang va ((nhung cong) OR (dung cong)) manh toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((tieu xanh) OR (dieu hanh)) - hanh trang va ((nhung cong) OR (dung cong)) manh toan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((tieu xanh) or (dieu hanh)) - hanh trang va ((nhung cong) OR (dung cong)) manh toan cau".
• Adding a wildcard symbol may retrieve word variants: theo ((tieu xanh) or (dieu hanh)) - hanh trang va ((nhung cong) OR (dung cong)) manh toan cau*.