Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
dong thanh » truong thanh
hang manh » hoang manh, hung manh, nhung manh
dang manh » dang hanh, dang minh, duong manh
cua nhung » va nhung
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 - ((hang manh) OR (dang manh)) cua nhung ((dong thanh) or (cong trinh)) toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sach - ((hang manh) OR (dang manh)) cua nhung ((dong thanh) OR (cong trinh)) toan ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chieu sach - ((hang manh) OR (dang manh)) cua nhung ((dong thanh) or (cong trinh)) toan ban".
• Adding a wildcard symbol may retrieve word variants: ho chieu sach - ((hang manh) OR (dang manh)) cua nhung ((dong thanh) or (cong trinh)) toan ban*.