Perhaps you should try some spelling variations:
thuoc sach » hoc sach, nuoc sach, thuat 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
va chat » van chat, va phat, cao chat
vat dat » va dat, tat dat, van dat
cua tre » cua te, cuu tre, cua triet

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "thuoc sach ty nang xa hoi. hieu ((va chat) OR (vo co)) thuc vat dat dai cua tre~".
• Adding a wildcard symbol may retrieve word variants: thuoc sach ty nang xa hoi. hieu ((va chat) OR (vo co)) thuc vat dat dai cua tre*.