Perhaps you should try some spelling variations:
thu sach » tu sach, thuat sach, thuoc sach
hanh vai » hanh vi, hanh tai, hanh van
hanh va » hang va, hanh vi
cua tre » cua te, cuu tre, cua triet
va tham » van tham, va cham, va thanh
hieu va » lieu va, hieu qua
xuc va » duc va, tuc va, luc va
sach 2 » sach y
loc va » hoc va, luc va
2 nang » v nang
x hoi » xa hoi, o hoi, x ho

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 2 nang x hoi. hieu va tham ((xuc va) or (loc va)) ((hanh vai) OR (hanh va)) cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach 2 nang x hoi. hieu va tham ((xuc va) OR (loc va)) ((hanh vai) OR (hanh va)) cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu sach 2 nang x hoi. hieu va tham ((xuc va) or (loc va)) ((hanh vai) OR (hanh va)) cua tre".
• Adding a wildcard symbol may retrieve word variants: thu sach 2 nang x hoi. hieu va tham ((xuc va) or (loc va)) ((hanh vai) OR (hanh va)) cua tre*.