Perhaps you should try some spelling variations:
hang doanh » nhung doanh, van doanh, dung doanh
hanh doanh » chinh doanh, doanh doanh, kinh doanh
thong cong » trong cong, tong cong, thong thong
hieu manh » chieu xanh, hieu nganh, dieu hanh
cua thong » cua thuong, cua khong, cua tong
hoc hieu » hoc thieu, hoc hien, doc hieu
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 hieu manh - ((hanh doanh) or (hang doanh)) cua thong cong ((dan toan) or (anh tuan)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hieu manh - ((hanh doanh) OR (hang doanh)) cua thong cong ((dan toan) OR (anh tuan)) cau.
• Adding a wildcard symbol may retrieve word variants: hoc hieu manh - ((hanh doanh) or (hang doanh)) cua thong cong ((dan toan) or (anh tuan)) cau*.