Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
doi chieu » doc hieu, doi chi, ho chieu
nhan dang » nhan dan, phan dang, tran dang
hanh dong » anh dong
dung cong » dung trong
cua dung » cua dang, cua dong, qua dung
cong tac » cong ty
tac toan » tap toan, tam toan, hach toan
toan cau » toan cao, toan ban, toan tap
ha dong » hoat dong, van dong

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi chieu sach - ((nhan dang) or (((hanh dong) OR (ha dong)))) cua dung cong tac toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu sach - ((nhan dang) OR (((hanh dong) OR (ha dong)))) cua dung cong tac toan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi chieu sach - ((nhan dang) or (((hanh dong) OR (ha dong)))) cua dung cong tac toan cau".
• Adding a wildcard symbol may retrieve word variants: doi chieu sach - ((nhan dang) or (((hanh dong) OR (ha dong)))) cua dung cong tac toan cau*.