Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
cong thanh » dong thanh, cong trinh, cong tan
hien hanh » dieu hanh
cua thong » cua thuong, cua khong, suat thong
cong cong » cong dong, trong cong, dung cong
thanh cau » thanh chau, thanh mau, nhanh cau
cua tong » cua cong, cua dong, cua nong

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

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