Perhaps you should try some spelling variations:
doi chinh » do chinh, tai chinh, hoc chinh
canh manh » canh tranh, cach mang, van manh
lanh manh » lanh tranh, lan anh, van manh
dung cong » dung trong
cua dung » cua dang, cua dong, qua dung
dan toan » van toan, manh toan, xuan toan
dan than » dan chan, ban than, van than

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

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