Perhaps you should try some spelling variations:
dang xay » dang van, van xay
hanh dai » hanh tai, hanh dao, vanh dai
sach ky » sac ky, sach ty, sach kem
xay hoi » xa hoi, tay hoi, cay phoi
va cau » van cau, va cac, va dau
xuc va » duc va, luc va, xac va
tuc va » thuc va, truc va, tuc xa

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

• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((sach ky) OR (sach y)) dang xay hoi. lieu va cau ((xuc va) OR (tuc va)) hanh dai cua vat~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu ((sach ky) OR (sach y)) dang xay hoi. lieu va cau ((xuc va) or (tuc va)) hanh dai cua vat~".
• Adding a wildcard symbol may retrieve word variants: tu ((sach ky) OR (sach y)) dang xay hoi. lieu va cau ((xuc va) or (tuc va)) hanh dai cua vat*.