Perhaps you should try some spelling variations:
ban thanh » ban hanh, ban hang
sinh cua » manh cua, dinh cuu, sinh va
va thanh » gia thanh, va tinh, le thanh
vu sach » vu bach, su sach, vu khach
cua tre » cua te, cuu tre, cua triet
sach ky » sac ky, sach y, sach ty
anh xa » anh xay, canh xa, anh va
ky anh » ky danh, ly anh, ty anh
va dao » ca dao

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

• Performing a fuzzy search may retrieve terms with similar spellings: vu sach ky anh xa hoi. hieu ((va cac) or (va dao)) xuc ((va thanh) OR (ban thanh)) sinh cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu sach ky anh xa hoi. hieu ((va cac) OR (va dao)) xuc ((va thanh) OR (ban thanh)) sinh cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "vu sach ky anh xa hoi. hieu ((va cac) or (va dao)) xuc ((va thanh) OR (ban thanh)) sinh cua tre".
• Adding a wildcard symbol may retrieve word variants: vu sach ky anh xa hoi. hieu ((va cac) or (va dao)) xuc ((va thanh) OR (ban thanh)) sinh cua tre*.