Perhaps you should try some spelling variations:
hanh tranh » canh tranh, hanh trinh, hanh trang
dung thang » hung thang, cung thang, dung thuong
tranh cua » doanh cua, manh cua
dung cong » dung trong
chi hanh » chi thanh, thi hanh, chi anh
cua dung » cua dang, cua dong, qua dung
dan toan » van toan, dan than, manh toan

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi ((chi hanh) OR (chi nhanh)) - hanh tranh cua dung cong ((dung thang) or (dan toan)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi ((chi hanh) OR (chi nhanh)) - hanh tranh cua dung cong ((dung thang) OR (dan toan)) cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi ((chi hanh) OR (chi nhanh)) - hanh tranh cua dung cong ((dung thang) or (dan toan)) cau".
• Adding a wildcard symbol may retrieve word variants: doi ((chi hanh) OR (chi nhanh)) - hanh tranh cua dung cong ((dung thang) or (dan toan)) cau*.