Perhaps you should try some spelling variations:
thien thanh » tien thanh, thi thanh, hien hanh
thieu xanh » chieu xanh, hieu manh, thien anh
thong cong » trong cong, tong cong, thong thong
hanh hinh » hanh chinh, hanh tinh, hanh dinh
cua thong » cua thuong, cua khong, cua tong
cong cang » cong cong, cong lang, cong vang
thong cau » thong cac, thong cap, thong cua
hinh cua » chinh cua, sinh cua, tinh cua
thong tu » phong tuc, thong tin, thong ke

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