Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien danh
hanh trinh » canh tranh, hanh chinh
thong cong » trong cong, tong cong, thong thong
thien anh » thien danh, tien anh, thien thanh
hanh tang » hanh trang, anh tang, hanh mang
cua thong » cua thuong, cua khong, cua tong
cong ban » cong bang, cong san, cong tan
ban than » ban thanh, van thanh, ban hang
than cau » toan cau, phan cau, than cap

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