Perhaps you should try some spelling variations:
ban thanh » ban hanh, ban hang
hieu van » hieu va, thien van, lieu va
va thanh » gia thanh, va tinh, le thanh
bach ky » bac ky
ky lang » ky nang, ky dang, ky tang
lang xa » lang ha, dang xay, lang van
van cac » van hac, van cau, van bac
cua tre » cua te, cuu tre, cua triet
cac tu » cac thu, cach tu, cac du
vi cua » vai cua, di cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: vu bach ky lang xa hoi. hieu van cac tu ((va thanh) or (ban thanh)) vi cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu bach ky lang xa hoi. hieu van cac tu ((va thanh) OR (ban thanh)) vi cua tre.
• Adding a wildcard symbol may retrieve word variants: vu bach ky lang xa hoi. hieu van cac tu ((va thanh) or (ban thanh)) vi cua tre*.