Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
xuan trung » xuan truong, quang trung, doan trung
cuong bang » cong bang, muong bang, tuong bang
uong vang » cong vang, duong dang, duong vanh
ho chieu » theo chieu, hoc thieu, doi chieu
toan cao » toan ban, toan tap

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 - ((tinh toan) or (hanh chinh)) xuan trung ((uong vang) OR (cuong bang)) toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sach - ((tinh toan) OR (hanh chinh)) xuan trung ((uong vang) OR (cuong bang)) toan cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chieu sach - ((tinh toan) or (hanh chinh)) xuan trung ((uong vang) OR (cuong bang)) toan cao".
• Adding a wildcard symbol may retrieve word variants: ho chieu sach - ((tinh toan) or (hanh chinh)) xuan trung ((uong vang) OR (cuong bang)) toan cao*.