Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, thien anh, thien danh
thanh toan » thanh hoa, thanh san, tinh toan
cuong cong » cong cong, luong cong, duong cong
hieu manh » chieu xanh, hieu nganh, dieu hanh
van cuong » van chuong, van duong, van cong
dan khoan » dan khoa, dai khoang, toan khoan
khoan cam » khoa cam, khoan va, phan cam
toan van » tran van, toan ban, tan van
cong dan » cong san, cong tan, huong dan

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((thieu xanh) OR (hieu manh)) - thanh toan van cuong cong dan khoan cam~".
• Adding a wildcard symbol may retrieve word variants: hoc ((thieu xanh) OR (hieu manh)) - thanh toan van cuong cong dan khoan cam*.