Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
trang tuan » tran tuan, trung tuan, trong tuan
trong tan » trong quan, trong cac, trong ca
dung cong » dung trong
ho chieu » theo chieu, hoc thieu, doi chieu
van tuan » van quan, van ban, anh tuan
van tan » van ban, van tai, van thanh

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 ((trong tan) OR (trang tuan)) dung cong ((van tan) OR (van tuan)) ca~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chieu sach - hanh ((trong tan) or (trang tuan)) dung cong ((van tan) OR (van tuan)) ca~".
• Adding a wildcard symbol may retrieve word variants: ho chieu sach - hanh ((trong tan) or (trang tuan)) dung cong ((van tan) OR (van tuan)) ca*.