Perhaps you should try some spelling variations:
van nhanh » van thanh, van hanh, van nhan
van khanh » van thanh, van hanh, van anh
hieu ve » hieu va, hieu van
cac xuc » cam xuc, cac nuoc, chat xuc
cua tre » cua te, cuu tre, cua triet
tu sac » tu sach, tu cac, tu san
sac ky » cac ky, sai ky
nang o » nang co, nang ho, nang ro
ve cac » va cac, vien cac
o hai » co hai, so hai, o lai

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 hai. hieu ve cac xuc ((van nhanh) or (van khanh)) tri cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sac ky nang o hai. hieu ve cac xuc ((van nhanh) OR (van khanh)) tri cua tre.
• Adding a wildcard symbol may retrieve word variants: tu sac ky nang o hai. hieu ve cac xuc ((van nhanh) or (van khanh)) tri cua tre*.