Perhaps you should try some spelling variations:
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
va chat » van chat, va phat, hoa chat
xuc ban » duc ban, cuc ban, quoc ban
cua tre » cua te, cuu tre, cua triet
anh vi » hanh vi, anh va, anh vu
anh ve » hanh ve, anh va, anh viet

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. lieu ((va chat) or (cao chat)) xuc ban ((anh vi) OR (anh ve)) cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ty nang xa hoi. lieu ((va chat) OR (cao chat)) xuc ban ((anh vi) OR (anh ve)) cua tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ty nang xa hoi. lieu ((va chat) or (cao chat)) xuc ban ((anh vi) OR (anh ve)) cua tre*".