Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
hoan thanh » hoang thanh, ban thanh, van thanh
cong hoan » cong hoa, dong hoa, cong san
thanh hai » thanh phan, thanh hoa, thanh san
ho chieu » theo chieu, hoc thieu, doi chieu
cua dung » cua dang, cua dong, cua rung
qua dung » quang dung, qua song, qua cong

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

• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sach - thanh cong ((cua dung) OR (((qua dung) OR (su dung)))) cong hoan thanh hai~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chieu sach - thanh cong ((cua dung) or (((qua dung) OR (su dung)))) cong hoan thanh hai~".
• Adding a wildcard symbol may retrieve word variants: ho chieu sach - thanh cong ((cua dung) or (((qua dung) OR (su dung)))) cong hoan thanh hai*.