Perhaps you should try some spelling variations:
tieu xanh » tieu danh, chieu xanh, dieu hanh
hanh phan » thanh phan, anh phan, hanh nhan
nhung cau » chung cu, nhung bai, nhu cau
dang cong » dung cong
hanh han » hanh nhan, hanh san, anh han
tan toan » tan tran, tap toan, van toan
toan tap » toan ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo tieu xanh - ((hanh han) OR (hanh phan)) cua ((nhung cau) or (dang cong)) tan toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo tieu xanh - ((hanh han) OR (hanh phan)) cua ((nhung cau) OR (dang cong)) tan toan tap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo tieu xanh - ((hanh han) OR (hanh phan)) cua ((nhung cau) or (dang cong)) tan toan tap".
• Adding a wildcard symbol may retrieve word variants: theo tieu xanh - ((hanh han) OR (hanh phan)) cua ((nhung cau) or (dang cong)) tan toan tap*.