Perhaps you should try some spelling variations:
nhung cong » thong cong, hang cong, nhung don
tieu xanh » tieu danh, chieu xanh, dieu hanh
dung cong » dung trong
manh toan » thanh toan, anh tuan, tinh toan
anh nang » ganh nang, anh bang, anh dang
nang cua » mang cua, hang cua, nang dua
dan toan » van toan, dan than, xuan toan

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

• If you are trying to use Boolean operators, they must be ALL CAPS: theo tieu xanh - anh nang cua ((nhung cong) OR (dung cong)) ((dan toan) OR (manh toan)) cao~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo tieu xanh - anh nang cua ((nhung cong) or (dung cong)) ((dan toan) OR (manh toan)) cao~".
• Adding a wildcard symbol may retrieve word variants: theo tieu xanh - anh nang cua ((nhung cong) or (dung cong)) ((dan toan) OR (manh toan)) cao*.