Perhaps you should try some spelling variations:
thong cong » trong cong, tong cong, thong thong
doanh hoan » doanh doanh, doanh khoa, doanh nhan
hieu manh » chieu xanh, hieu nganh, dieu hanh
cua thong » cua thuong, cua khong, cua tong
hoc hieu » hoc thieu, hoc hien, doc hieu
dam phan » d phan, va phan
van phan » van phong, van thanh, luan phan

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 - ((toan doanh) or (doanh hoan)) cua thong cong ((dam phan) or (van phan)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hieu manh - ((toan doanh) OR (doanh hoan)) cua thong cong ((dam phan) OR (van phan)) cau.
• Adding a wildcard symbol may retrieve word variants: hoc hieu manh - ((toan doanh) or (doanh hoan)) cua thong cong ((dam phan) or (van phan)) cau*.