Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
nhung cong » dung cong, thong cong, hang cong
cdinh cua » chinh cua, dinh cuu, sinh cua
ho chieu » theo chieu, hoc thieu, doi chieu
dinh cua » dinh cuu, sinh cua, dinh cu
tac tren » tai tren, tap tren, tac truyen
rac tren » ran tren, sach tren, tran tren

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 - hanh ((cdinh cua) OR (dinh cua)) nhung cong ((tac tren) OR (rac tren)) chau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chieu sach - hanh ((cdinh cua) or (dinh cua)) nhung cong ((tac tren) OR (rac tren)) chau~".
• Adding a wildcard symbol may retrieve word variants: ho chieu sach - hanh ((cdinh cua) or (dinh cua)) nhung cong ((tac tren) OR (rac tren)) chau*.