Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
nhung cong » dung cong, thong cong, hang cong
doi chieu » doc hieu, doi chi, ho chieu
tranh cua » doanh cua, manh cua
cua nhung » va nhung
cong tac » cong ty
toan tai » doanh tai, toan cao, von tai
toan ban » van ban

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

• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu sach - canh tranh cua nhung cong tac ((toan tai) OR (((toan tap) OR (toan ban))))~.
• Adding a wildcard symbol may retrieve word variants: doi chieu sach - canh tranh cua nhung cong tac ((toan tai) or (((toan tap) or (toan ban))))*.