Perhaps you should try some spelling variations:
hanh vai » hanh vi, hanh va, hanh tai
dang xay » dang van, van xay
xuc ban » cuc ban, quoc ban, xuat ban
vai cua » dai cua, hai cua, lai cua
duc ban » duc tan, duc van, dua ban
cua tre » cua te, cuu tre, cua triet
lang xa » lang ha, lang van
sac ky » cac ky, sai ky
va cam » va cham, va cac, va cao
tu sac » tu sach, tu cac, tu san

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 ((lang xa) or (dang xay)) hoi. lieu va cam ((xuc ban) OR (duc ban)) hanh vai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sac ky ((lang xa) OR (dang xay)) hoi. lieu va cam ((xuc ban) OR (duc ban)) hanh vai cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sac ky ((lang xa) or (dang xay)) hoi. lieu va cam ((xuc ban) OR (duc ban)) hanh vai cua tre".
• Adding a wildcard symbol may retrieve word variants: tu sac ky ((lang xa) or (dang xay)) hoi. lieu va cam ((xuc ban) OR (duc ban)) hanh vai cua tre*.