Perhaps you should try some spelling variations:
ban thanh » ban hanh, ban hang
thu sach » tu sach, thuat sach, thuoc sach
hang tai » hang va, dung tai
yu hang » yu zhang, yu pang, yu wang
tai hoi » tai khoi, dai hoi, tai hai
sach yu » sach y, sach tu, sach uu
va hanh » van hanh, va thanh, va danh
ca cua » co cua
cua su » qua su
de tao » de tai, de tro

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

• Performing a fuzzy search may retrieve terms with similar spellings: thu sach yu hang tai hoi. hieu ((de tao) or (de dao)) duoc ((va hanh) or (ban thanh)) ca cua su~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach yu hang tai hoi. hieu ((de tao) OR (de dao)) duoc ((va hanh) OR (ban thanh)) ca cua su.
• Adding a wildcard symbol may retrieve word variants: thu sach yu hang tai hoi. hieu ((de tao) or (de dao)) duoc ((va hanh) or (ban thanh)) ca cua su*.