Perhaps you should try some spelling variations:
toc sach » hoc sach, doc sach, thuoc sach
va thanh » gia thanh, ban thanh, va tinh
thanh vi » hanh vi, thanh va, thanh ve
sach ty » sach y, sach tu, sach thu
ty nang » ky nang, ty xang, ty hang
hieu ve » hieu va, hieu van
cam tuc » cam xuc, cam tu, nam thuc
cua tre » cua te, cuu tre, cua triet
ve cam » ve cham, ve cac, va cam
tuc va » thuc va, truc va, tuc xa
vi cua » vai cua, di cua
o hoi » co hoi, o hoc, o hai

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

• Performing a fuzzy search may retrieve terms with similar spellings: toc sach ty nang ((xa hoi) or (o hoi)). hieu ve cam tuc va thanh vi cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc sach ty nang ((xa hoi) OR (o hoi)). hieu ve cam tuc va thanh vi cua tre.
• Adding a wildcard symbol may retrieve word variants: toc sach ty nang ((xa hoi) or (o hoi)). hieu ve cam tuc va thanh vi cua tre*.