Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
hanh doanh » hang doanh, chinh doanh, doanh doanh
thong cong » trong cong, tong cong, thong thong
hoc thieu » toc thieu, hoc hien
doanh cua » doanh luan
cua thong » cua thuong, cua khong, cua tong
san toan » van toan, manh toan, xuan toan
dan toan » van toan, dan than, manh toan

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 - hanh doanh cua thong cong ((san toan) or (dan toan)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu xanh - hanh doanh cua thong cong ((san toan) OR (dan toan)) cau*.