Perhaps you should try some spelling variations:
hanh tai » thanh tai, hang tai, han tai
cua tre » cua te, cuu tre, cua triet
tai cua » thai cua, tai cuc, tri cua
ta hanh » ta thanh, va hanh, tu hanh
cac toi » cac thoi
hieu va » lieu va, hieu qua
nang ma » tang ma, sang ma, nang cao
toi ta » toi tap, toi la, toi da
vu san » va san, vu ban
te ban » te bao
tu ban » thu ban
ma hoi » mai hoi, xa hoi, ma hoa

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

• If you are trying to use Boolean operators, they must be ALL CAPS: ((vu san) OR (((tu ban) OR (te ban)))) ky nang ma hoi. hieu va cac toi ta hanh tai cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((vu san) or (((tu ban) OR (te ban)))) ky nang ma hoi. hieu va cac toi ta hanh tai cua tre~".
• Adding a wildcard symbol may retrieve word variants: ((vu san) or (((tu ban) OR (te ban)))) ky nang ma hoi. hieu va cac toi ta hanh tai cua tre*.