Perhaps you should try some spelling variations:
hanh tang » hanh trang, anh tang, hanh mang
dung cong » dung trong
chi xanh » chi anh, chi danh, chieu xanh
chi hanh » chi nhanh, chi thanh, thi hanh
tang cua » mang cua, hang cua, tang luan
tac toan » tap toan, tam toan, hach toan
toan cao » toan ban, toan tap

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi ((chi xanh) or (chi hanh)) - hanh tang cua ((trong cong) or (dung cong)) tac toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi ((chi xanh) OR (chi hanh)) - hanh tang cua ((trong cong) OR (dung cong)) tac toan cao.
• Adding a wildcard symbol may retrieve word variants: doi ((chi xanh) or (chi hanh)) - hanh tang cua ((trong cong) or (dung cong)) tac toan cao*.