Perhaps you should try some spelling variations:
hanh doanh » hang doanh, chinh doanh, doanh doanh
thien hach » thien thanh, hien hanh
nhung cong » dung cong, thong cong, hang cong
doanh cua » doanh luan
cua nhung » va nhung
toan phan » thanh phan, toan ban, hoa phan
tai phan » tai thanh, tai phong, tai ngan
hieu ca » hieu cac, hieu cua, hieu va

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((thien hach) or (hieu ca)) - hanh doanh cua nhung cong ((tai phan) or (toan phan)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((thien hach) OR (hieu ca)) - hanh doanh cua nhung cong ((tai phan) OR (toan phan)) cau.
• Adding a wildcard symbol may retrieve word variants: hoc ((thien hach) or (hieu ca)) - hanh doanh cua nhung cong ((tai phan) or (toan phan)) cau*.