Perhaps you should try some spelling variations:
dang xay » dang van, van xay
van hanh » van thanh, ban hanh, van anh
hanh lai » hanh lam, hanh tai, thanh lap
tu sach » thu sach, su sach, te sach
sach ty » sach y, sach tu, sach thu
ty dang » ty xang, ky dang, ty hang
xay hoi » xa hoi, tay hoi, cay phoi
hieu ve » hieu van
hieu va » lieu va, hieu qua
xuc van » duc van, luc van, xuc ban
lai cua » dai cua, hai cua, lai chau
cua tre » cua te, cuu tre, cua triet

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sach ty dang xay hoi. ((hieu ve) or (hieu va)) cam xuc van hanh lai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ty dang xay hoi. ((hieu ve) OR (hieu va)) cam xuc van hanh lai cua tre.
• Adding a wildcard symbol may retrieve word variants: tu sach ty dang xay hoi. ((hieu ve) or (hieu va)) cam xuc van hanh lai cua tre*.