Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
doi chieu » doc hieu, doi chi, ho chieu
cua trong » cua truong, cua trung, ca trong
qua trong » quan trong, qua trinh, qua song
cong tac » cong ty
tac phan » tac pham, tai phan, tac phat
phan lap » phan dau

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 - thanh cong ((cua trong) or (qua trong)) cong tac phan lap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu sach - thanh cong ((cua trong) OR (qua trong)) cong tac phan lap.
• Adding a wildcard symbol may retrieve word variants: doi chieu sach - thanh cong ((cua trong) or (qua trong)) cong tac phan lap*.