Perhaps you should try some spelling variations:
thai cua » than cua, tai cuc, tri cua
anh thai » anh thi, anh tai, nhanh thai
cua tre » cua te, cuu tre, cua triet
van anh » van thanh, tuan anh, van minh
duc van » duc va, duc tan, duc manh
thu san » thuy san, thu ban, phu san
cac duc » cac du, cao duc, cac dac
hieu ve » hieu va, hieu van
ve cac » va cac, vien cac
tu bac » tu cac, tu bat, tu bai
nang o » nang co, nang ho, nang ro
tu ban » thu ban, te ban
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 (tu ban))) or (thu san)) ky nang o lai. hieu ve cac duc van anh thai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((((tu bac) OR (tu ban))) OR (thu san)) ky nang o lai. hieu ve cac duc van anh thai cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((tu bac) OR (tu ban))) or (thu san)) ky nang o lai. hieu ve cac duc van anh thai cua tre".
• Adding a wildcard symbol may retrieve word variants: ((((tu bac) OR (tu ban))) or (thu san)) ky nang o lai. hieu ve cac duc van anh thai cua tre*.