Perhaps you should try some spelling variations:
van dinh » van minh, van dich, va dinh
ban hanh » ban hang
tu sach » thu sach, su sach, te sach
sach ty » sach y, sach tu, sach thu
xang xa » lang xa, mang xa, ang xa
hieu ve » hieu van
hieu va » lieu va, hieu qua
cac xuc » cam xuc, cac nuoc, chat xuc
vai cua » dai cua, hai cua, lai cua
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 xang xa hoi. ((hieu ve) or (hieu va)) cac xuc ((van dinh) or (ban hanh)) vai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ty xang xa hoi. ((hieu ve) OR (hieu va)) cac xuc ((van dinh) OR (ban hanh)) vai cua tre.
• Adding a wildcard symbol may retrieve word variants: tu sach ty xang xa hoi. ((hieu ve) or (hieu va)) cac xuc ((van dinh) or (ban hanh)) vai cua tre*.