Perhaps you should try some spelling variations:
doanh doanh » doanh hoan, doanh thanh, dong doanh
nhan thong » nhan trong, nha thong, nhan khong
thong cong » trong cong, tong cong, thong thong
hieu manh » chieu xanh, hieu nganh, dieu hanh
hoc hieu » hoc thieu, hoc hien, doc hieu
cong tan » cong tac, cong san, cong thanh
tan phan » toan phan, than phan, van phan
toan » tran

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