Perhaps you should try some spelling variations:
hieu van » hieu va, thien van, lieu va
ban banh » ban hanh, ban anh, ban thanh
ban danh » ban doanh, ban hanh, ban dan
tu sach » thu sach, su sach, te sach
sach ty » sach y, sach tu, sach thu
ty nang » ky nang, ty xang, ty hang
nang xa » nang x, lang xa, nang ma
van lam » van nam
lam xuc » cam xuc, lam duoc
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 nang xa hoi. hieu van lam xuc ((ban banh) or (ban danh)) vai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ty nang xa hoi. hieu van lam xuc ((ban banh) OR (ban danh)) vai cua tre.
• Adding a wildcard symbol may retrieve word variants: tu sach ty nang xa hoi. hieu van lam xuc ((ban banh) or (ban danh)) vai cua tre*.