Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
doanh hoan » doanh doanh, doanh khoa, doanh nhan
cong toan » cong tan, cong doan, bong toan
cong hoan » cong hoa, dong hoa, cong san
cong tuan » cong tan, cong luan, cong thanh
ho chieu » theo chieu, hoc thieu, doi chieu
phan dau » phan tu, hang dau
hoan va » khoan va, hoang va, doan va

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: ho chieu sach - doanh hoan va nhung ((((cong toan) OR (cong hoan))) or (cong tuan)) phan dau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sach - doanh hoan va nhung ((((cong toan) OR (cong hoan))) OR (cong tuan)) phan dau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chieu sach - doanh hoan va nhung ((((cong toan) OR (cong hoan))) or (cong tuan)) phan dau".
• Adding a wildcard symbol may retrieve word variants: ho chieu sach - doanh hoan va nhung ((((cong toan) OR (cong hoan))) or (cong tuan)) phan dau*.