Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
doi chieu » doc hieu, doi chi, ho chieu
trinh va » trinh van, trinh vat, trinh vi
trinh ve » trinh he, trinh vi, trinh viet
trong ca » trong cac, trong nha
phan lap » phan dau
ca phan » cac phan, cao phan, cap phan

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 - canh ((trinh va) or (trinh ve)) dung trong ca phan lap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu sach - canh ((trinh va) OR (trinh ve)) dung trong ca phan lap.
• Adding a wildcard symbol may retrieve word variants: doi chieu sach - canh ((trinh va) or (trinh ve)) dung trong ca phan lap*.