Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
song trong » cong trong, dong trong, sang trong
doi chieu » doc hieu, doi chi, ho chieu
trong tac » trong cac, tuong tac, trong tan
thong tu » phong tuc, thong tin, thong ke
tac toan » tap toan, tam toan, hach toan
toan cau » toan cao, toan ban, toan tap

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 - hanh ((thong quan) or (thong tu)) song trong tac toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu sach - hanh ((thong quan) OR (thong tu)) song trong tac toan cau.
• Adding a wildcard symbol may retrieve word variants: doi chieu sach - hanh ((thong quan) or (thong tu)) song trong tac toan cau*.