Perhaps you should try some spelling variations:
hien nhanh » thien thanh, tien thanh, dien thanh
hanh doanh » hang doanh, chinh doanh, doanh doanh
nhung cong » dung cong, thong cong, hang cong
hien hanh » dieu hanh
doanh cua » doanh luan
cua nhung » va nhung
tran nhan » tran nhat, tan nhan, tran thanh
tran han » tran hanh, tran hoan, tran van

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((hien nhanh) or (hien hanh)) - hanh doanh cua nhung cong ((tran han) or (tran nhan)) tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((hien nhanh) OR (hien hanh)) - hanh doanh cua nhung cong ((tran han) OR (tran nhan)) tu.
• Adding a wildcard symbol may retrieve word variants: hoc ((hien nhanh) or (hien hanh)) - hanh doanh cua nhung cong ((tran han) or (tran nhan)) tu*.