Perhaps you should try some spelling variations:
hieu van » hieu va, thien van, lieu va
nang cay » nang cao, nang cap, nang cai
cay phoi » cap phoi, tay hoi, cay cho
ban hanh » ban hang
cac xuc » cam xuc, cac nuoc, chat xuc
vai cua » dai cua, hai cua, lai cua
van anh » van thanh, tuan anh, van minh
tu sach » thu sach, su sach, te sach
sach ty » sach y, sach tu, sach thu
hieu ve » hieu va
ty nang » ky nang, ty xang, ty hang
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 nang cay phoi. ((hieu ve) or (hieu van)) cac xuc ((van anh) or (ban hanh)) vai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ty nang cay phoi. ((hieu ve) OR (hieu van)) cac xuc ((van anh) OR (ban hanh)) vai cua tre.
• Adding a wildcard symbol may retrieve word variants: tu sach ty nang cay phoi. ((hieu ve) or (hieu van)) cac xuc ((van anh) or (ban hanh)) vai cua tre*.