Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
manh huong » anh huong, manh hung, manh cuong
doi chieu » doc hieu, doi chi, ho chieu
cong tan » cong tac, cong san, cong thanh
tan toan » tan tran, tap toan, van toan
toan ban » van ban
cua van » cua ban, cua dan, cua can

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 - manh huong ((cua van) or (cua vat)) cong tan toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu sach - manh huong ((cua van) OR (cua vat)) cong tan toan ban.
• Adding a wildcard symbol may retrieve word variants: doi chieu sach - manh huong ((cua van) or (cua vat)) cong tan toan ban*.