Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
thong cong » trong cong, tong cong, thong thong
doi chieu » doc hieu, doi chi, ho chieu
thanh han » thanh phan, thanh nhan, thanh hang
cua thong » cua thuong, cua khong, cua tong
hanh han » hanh nhan, hanh phan, hanh san
cong tap » cuong tap, cong tac, cong tan
tap doan » tap quan
doan cap » doanh cao, dan ca, toan cao

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 han) or (thanh han)) cua thong cong tap doan cap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu sach - ((hanh han) OR (thanh han)) cua thong cong tap doan cap.
• Adding a wildcard symbol may retrieve word variants: doi chieu sach - ((hanh han) or (thanh han)) cua thong cong tap doan cap*.