Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
tran tuan » tran quang, tran thanh, tranh luan
tran xuan » tran quang, tran van
trong tac » trong cac, trong tan, trong tuc
tuong tac » cong tac, luong tai, tuong lai
ho chieu » theo chieu, hoc thieu, doi chieu
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 - thanh ((tran tuan) OR (tran xuan)) duong ((trong tac) or (tuong tac)) toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sach - thanh ((tran tuan) OR (tran xuan)) duong ((trong tac) OR (tuong tac)) toan ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chieu sach - thanh ((tran tuan) OR (tran xuan)) duong ((trong tac) or (tuong tac)) toan ban".
• Adding a wildcard symbol may retrieve word variants: ho chieu sach - thanh ((tran tuan) OR (tran xuan)) duong ((trong tac) or (tuong tac)) toan ban*.