Perhaps you should try some spelling variations:
hieu van » hieu va, thien van, lieu va
van cham » van chat, van tham, va cham
quoc ban » quoc bao, quoc lan, quoc quan
hanh vai » hanh vi, hanh va, hanh tai
nang ma » tang ma, sang ma, nang cao
xuc ban » duc ban, cuc ban, xuat ban
vai cua » dai cua, hai cua, lai cua
cua tre » cua te, cuu tre, cua triet
tu sac » tu sach, tu cac, tu san
sac ky » cac ky, sai ky
ma hoi » mai hoi, xa hoi, ma hoa

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sac ky nang ma hoi. hieu van cham ((xuc ban) or (quoc ban)) hanh vai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sac ky nang ma hoi. hieu van cham ((xuc ban) OR (quoc ban)) hanh vai cua tre.
• Adding a wildcard symbol may retrieve word variants: tu sac ky nang ma hoi. hieu van cham ((xuc ban) or (quoc ban)) hanh vai cua tre*.