Perhaps you should try some spelling variations:
thanh trung » thanh tung
chieu sach » chinh sach, chiet tach, chieu sang
cac phuong » cac truong
va phuong » va thuong
ho chieu » theo chieu, hoc thieu, doi chieu
cong dan » cong san, cong tan, huong dan
chan cao » chan cho, chat cao, toan cao
chay cao » cay cao, chat cao, nha cao

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 trung ((va phuong) OR (cac phuong)) cong dan ((chan cao) or (chay cao))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sach - thanh trung ((va phuong) OR (cac phuong)) cong dan ((chan cao) OR (chay cao)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chieu sach - thanh trung ((va phuong) OR (cac phuong)) cong dan ((chan cao) or (chay cao))".
• Adding a wildcard symbol may retrieve word variants: ho chieu sach - thanh trung ((va phuong) OR (cac phuong)) cong dan ((chan cao) or (chay cao))*.