Perhaps you should try some spelling variations:
ban thanh » ban hang
dang xay » dang van, van xay
ban hanh » ban hang
lieu van » lieu va, hieu van, sieu van
van tham » van thanh, van tuan, van chat
tham xuc » tham nuoc, tham thuc, pham duc
so sach » so sanh, bo sach, co sach
sach ky » sac ky, sach y, sach ty
xay hoi » xa hoi, tay hoi, cay phoi
ky dang » ky nang, ky danh
cua tu » cua tuc, cua su, cua te
cua cu » cua chu, cua cau, cua su

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

• Performing a fuzzy search may retrieve terms with similar spellings: so sach ky dang xay hoi. lieu van tham xuc ((ban thanh) or (ban hanh)) de ((cua tu) or (cua cu))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sach ky dang xay hoi. lieu van tham xuc ((ban thanh) OR (ban hanh)) de ((cua tu) OR (cua cu)).
• Adding a wildcard symbol may retrieve word variants: so sach ky dang xay hoi. lieu van tham xuc ((ban thanh) or (ban hanh)) de ((cua tu) or (cua cu))*.