Perhaps you should try some spelling variations:
thiet tach » thien hach, thuat tach
chiet tach » chieu sach
hanh doanh » hang doanh, chinh doanh, doanh doanh
nhung cong » dung cong, thong cong, hang cong
doanh cua » doanh luan
cua nhung » va nhung
cong vang » cong lang, cong quang, cong ngang
vang van » dang van, tang van, lang 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 ((thiet tach) or (chiet tach)) - hanh doanh cua nhung cong vang van ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((thiet tach) OR (chiet tach)) - hanh doanh cua nhung cong vang van ban.
• Adding a wildcard symbol may retrieve word variants: hoc ((thiet tach) or (chiet tach)) - hanh doanh cua nhung cong vang van ban*.