Perhaps you should try some spelling variations:
duong phuong » dung phuong, duong phong, dong phuong
duong huong » dong huong, duong hong, duong vuong
tieu sach » chieu sach, dien sach, te sach
hanh tung » thanh tung, manh tung, hanh dung
hanh mang » nhanh mang, hanh trang, nhanh lang
van chat » cao chat
chat ban » nhat ban, chat ran, cua ban

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: theo tieu sach - ((hanh tung) or (hanh mang)) van ((duong huong) OR (duong phuong)) van chat ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo tieu sach - ((hanh tung) OR (hanh mang)) van ((duong huong) OR (duong phuong)) van chat ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo tieu sach - ((hanh tung) or (hanh mang)) van ((duong huong) OR (duong phuong)) van chat ban".
• Adding a wildcard symbol may retrieve word variants: theo tieu sach - ((hanh tung) or (hanh mang)) van ((duong huong) OR (duong phuong)) van chat ban*.