Perhaps you should try some spelling variations:
hanh hai » thanh hai, nhanh hai, hang hai
ban hanh » ban hang
cham duc » pham duc, cham soc, pham duy
tang van » dang van, hoang van, trong van
tu sach » thu sach, su sach, te sach
hai cua » thai cua, dai cua, hoi cua
duc ban » duc tan, duc van, dua ban
va cham » va chat, va tham
hieu va » lieu va, hieu qua
sach ty » sach y, sach tu, sach thu
lang ha » long ha
mang xa » lang xa, mang may, dang xay
cua tre » cua te, cuu tre, cua triet

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sach ty ((((mang xa) or (lang ha))) or (tang van)) hoi. hieu va cham duc ban hanh hai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ty ((((mang xa) OR (lang ha))) OR (tang van)) hoi. hieu va cham duc ban hanh hai cua tre*.