Perhaps you should try some spelling variations:
anh thai » anh thi, anh tai, nhanh thai
thai cua » than cua, tai cuc, tri cua
thu ban » thu hang
hieu ve » hieu va, hieu van
duc van » duc va, duc manh, duc phan
cua tre » cua te, cuu tre, cua triet
tu bac » tu ban, tu cac, tu bat
nang o » nang co, nang ho, nang ro
ve cac » va cac, vien cac
o lai » o lao

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((tu bac) or (thu ban)) ky nang o lai. hieu ve cac ((duc van) or (duc tan)) anh thai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu bac) OR (thu ban)) ky nang o lai. hieu ve cac ((duc van) OR (duc tan)) anh thai cua tre.
• Adding a wildcard symbol may retrieve word variants: ((tu bac) or (thu ban)) ky nang o lai. hieu ve cac ((duc van) or (duc tan)) anh thai cua tre*.