Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
hanh dinh » thanh dinh, hinh dinh, hanh tinh
thong qua » thong quan, thong cua, thong tu
ho chieu » theo chieu, hoc thieu, doi chieu
va thong » va thuong, va phuong, va cong
qua toan » cua toan, qua tan, qua than
toan ban » van ban

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 - hanh dinh ((va thong) or (he thong)) thong qua toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sach - hanh dinh ((va thong) OR (he thong)) thong qua toan ban.
• Adding a wildcard symbol may retrieve word variants: ho chieu sach - hanh dinh ((va thong) or (he thong)) thong qua toan ban*.