Perhaps you should try some spelling variations:
hieu van » hieu va, thien van, lieu va
su sach » so sach, vu sach
hanh va » hang va, hanh vi
xuc ban » duc ban, cuc ban, quoc ban
van cac » van hac, van cau, van bac
cac xuc » cam xuc, cac nuoc, chat xuc
te sach » toc sach
cua tre » cua te, cuu tre, cua triet
anh ve » hanh ve, anh va, anh viet
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: ((su sach) or (te sach)) ky nang x hoi. hieu van cac xuc ban ((anh ve) or (hanh va)) cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((su sach) OR (te sach)) ky nang x hoi. hieu van cac xuc ban ((anh ve) OR (hanh va)) cua tre.
• Adding a wildcard symbol may retrieve word variants: ((su sach) or (te sach)) ky nang x hoi. hieu van cac xuc ban ((anh ve) or (hanh va)) cua tre*.