Perhaps you should try some spelling variations:
thu sach » tu sach, thuat sach, thuoc sach
sach tri » sach tai, sach tren, sach truc
tri nang » thi nang, tra nang, tri bang
ban hanh » ban hang
nang xa » nang x, lang xa, nang ma
van cam » van lam, van cau, van dam
cuc ban » cua ban, cac ban, cuu ban
cua tre » cua te, cuu tre, cua triet
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: thu sach tri nang xa hoi. thien ((van cam) or (van nam)) cuc ban hanh vi cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach tri nang xa hoi. thien ((van cam) OR (van nam)) cuc ban hanh vi cua tre.
• Adding a wildcard symbol may retrieve word variants: thu sach tri nang xa hoi. thien ((van cam) or (van nam)) cuc ban hanh vi cua tre*.