Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
doi chieu » doc hieu, doi chi, ho chieu
canh manh » lanh manh, canh tranh, cach mang
cua thong » cua thuong, cua tong, suat thong
cua khong » hua khong, cua phuong, cua thuong
cong dan » cong san, cong tan, huong dan
phan dau » phan tu, hang dau
than cap » khan cap, thanh lap, thanh cac

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

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