Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
thong cong » trong cong, tong cong, thong thong
doi chieu » doc hieu, doi chi, ho chieu
manh cua » doanh cua
cong tac » cong ty
toan cau » toan cao, toan tap, toan tai
toan ban » van ban
ban cua » ban quan

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 ((manh cua) OR (ban cua)) thong cong tac ((toan cau) OR (toan ban))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi chieu sach - canh ((manh cua) or (ban cua)) thong cong tac ((toan cau) OR (toan ban))~".
• Adding a wildcard symbol may retrieve word variants: doi chieu sach - canh ((manh cua) or (ban cua)) thong cong tac ((toan cau) OR (toan ban))*.