Perhaps you should try some spelling variations:
ban thanh » ban hanh, ban hang
hieu cac » hieu luc, hieu va, hieu van
thanh vi » hanh vi, thanh va, thanh ve
hieu cao » chieu cao, hieu ca, kieu cao
chat xuc » chat huu, cam xuc, chao xu
so sach » so sanh, bo sach, co sach
xuc ban » duc ban, cuc ban, quoc ban
cua tre » cua te, cuu tre, cua triet
sach ty » sach y, sach tu, sach thu
ty nang » ky nang, ty xang, ty hang
vi cua » vai cua, di cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: so sach ty nang ((x ho) or (xa hoi)). ((hieu cao) OR (hieu cac)) chat xuc ban thanh vi cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sach ty nang ((x ho) OR (xa hoi)). ((hieu cao) OR (hieu cac)) chat xuc ban thanh vi cua tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "so sach ty nang ((x ho) or (xa hoi)). ((hieu cao) OR (hieu cac)) chat xuc ban thanh vi cua tre*".