Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
trong dang » truong dang, trong dan, trong dong
dang thanh » dong thanh, dang hanh, hoang thanh
thanh cau » thanh chau, thanh mau, nhanh cau
ho chieu » theo chieu, hoc thieu, doi chieu
tung bay » vung bay, tuong ban, vung bao
tung dan » dung dan, huong dan, trung dai

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 ((tung bay) or (tung dan)) dung trong dang thanh cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sach - thanh ((tung bay) OR (tung dan)) dung trong dang thanh cau.
• Adding a wildcard symbol may retrieve word variants: ho chieu sach - thanh ((tung bay) or (tung dan)) dung trong dang thanh cau*.