Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
doi chieu » doc hieu, doi chi, ho chieu
trang va » tran van, hang va
trinh va » trinh van, trinh vat, trinh ve
cong tan » cong tac, cong thanh, cong ty
cong san » cong tac
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 - canh ((trang va) or (trinh va)) trong ((cong tan) or (cong san)) phan lap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu sach - canh ((trang va) OR (trinh va)) trong ((cong tan) OR (cong san)) phan lap.
• Adding a wildcard symbol may retrieve word variants: doi chieu sach - canh ((trang va) or (trinh va)) trong ((cong tan) or (cong san)) phan lap*.