Perhaps you should try some spelling variations:
nhanh thai » nhanh thi, nhanh thanh, nhanh thang
van nhanh » van thanh, van hanh, van khanh
thai cua » than cua, tai cuc, tri cua
chat xuc » chat huu, cam xuc, chao xu
cua tre » cua te, cuu tre, cua triet
cac xuc » cam xuc, cac nuoc, cac cuoc
hieu ve » hieu va, hieu van
tu sac » tu sach, tu cac, tu san
sac ky » cac ky, sai ky
o hai » co hai, so hai, o lai
o hoi » co hoi, o hoc, o 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 ((o hoi) or (o hai)). hieu ve ((cac xuc) or (chat xuc)) van nhanh thai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sac ky nang ((o hoi) OR (o hai)). hieu ve ((cac xuc) OR (chat xuc)) van nhanh thai cua tre.
• Adding a wildcard symbol may retrieve word variants: tu sac ky nang ((o hoi) or (o hai)). hieu ve ((cac xuc) or (chat xuc)) van nhanh thai cua tre*.