Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
hanh manh » hanh mang, lanh manh, hoang manh
cua thong » cua thuong, cua khong, cua tong
manh cua » doanh cua, ban cua
cong dan » cong tan, huong dan, cong dong
cong san » cong tac
toan tap » toan ban

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

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