Perhaps you should try some spelling variations:
hanh doanh » hang doanh, chinh doanh, doanh doanh
chiet tach » chieu sach
dung doanh » dung dan, dung dong
nhung cong » dung cong, thong cong, hang cong
hieu cach » hieu cac, chieu sach, hieu ca
cua nhung » va nhung
cong van » cong vang, cong san, song van
van tan » van tuan, van ban, van tai
tan ban » toan ban, tang ban, van ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: toc ((hieu cach) or (chiet tach)) - ((hanh doanh) or (dung doanh)) cua nhung cong van tan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc ((hieu cach) OR (chiet tach)) - ((hanh doanh) OR (dung doanh)) cua nhung cong van tan ban.
• Adding a wildcard symbol may retrieve word variants: toc ((hieu cach) or (chiet tach)) - ((hanh doanh) or (dung doanh)) cua nhung cong van tan ban*.