Perhaps you should try some spelling variations:
doi chinh » do chinh, tai chinh, hoc chinh
canh manh » lanh manh, canh tranh, cach mang
cua thong » cua thuong, cua khong, cua tong
hua khong » hoa khong, cua khong, hoac khong
trong dan » trong dang, trong san, trong tan
dan toan » van toan, dan than, manh toan
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: doi chinh sach - canh manh ((cua thong) or (hua khong)) trong dan toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chinh sach - canh manh ((cua thong) OR (hua khong)) trong dan toan cau.
• Adding a wildcard symbol may retrieve word variants: doi chinh sach - canh manh ((cua thong) or (hua khong)) trong dan toan cau*.