Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
hanh trang » thanh trung, canh tranh, hanh trinh
cua nhung » va nhung
xuong van » duong van, xuong san, muong van
luong van » luong va, duong van, luong vat
ho chieu » theo chieu, hoc thieu, doi chieu
toan tap » toan 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 - ((hanh trang) or (hanh chinh)) cua nhung ((xuong van) OR (luong van)) toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sach - ((hanh trang) OR (hanh chinh)) cua nhung ((xuong van) OR (luong van)) toan tap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chieu sach - ((hanh trang) or (hanh chinh)) cua nhung ((xuong van) OR (luong van)) toan tap".
• Adding a wildcard symbol may retrieve word variants: ho chieu sach - ((hanh trang) or (hanh chinh)) cua nhung ((xuong van) OR (luong van)) toan tap*.