Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
hieu xanh » hieu manh, hieu nganh, dieu hanh
tong cong » trong cong, cong cong, dung cong
cong manh » cong danh, duong manh, cong thanh
chinh ha » chinh nha, chinh ta, chinh va
toan cau » toan cao, toan ban, toan tai
toan tap » toan ban
ha tong » han tong, ha dong, ha tang

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

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