Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
cong hoan » cong hoa, cong san, cong ha
thanh lap » thanh san, phan lap, thanh hai
ho chieu » theo chieu, hoc thieu, doi chieu
tuong va » truong va, thuong va, luong va
dong hoa » dong hoc, dong co
tung va » trung va, dung va, vung va

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 ((tung va) OR (tuong va)) nhung ((cong hoan) OR (dong hoa)) thanh lap~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chieu sach - thanh ((tung va) OR (tuong va)) nhung ((cong hoan) or (dong hoa)) thanh lap~".
• Adding a wildcard symbol may retrieve word variants: ho chieu sach - thanh ((tung va) OR (tuong va)) nhung ((cong hoan) or (dong hoa)) thanh lap*.