Perhaps you should try some spelling variations:
ban thanh » ban hanh, ban hang
hang tai » hang va, dung tai
thanh vi » hanh vi, thanh va, thanh ve
su sach » vu sach
duc ban » duc tan, duc van, dua ban
cam duc » cam xuc, cao duc, pham duc
hieu va » lieu va, hieu qua
hang ca » hang va, nang cao, hang dau
so sach » so sanh, bo sach, co sach
va cam » va cham, va cac, va cao
vi cua » vai cua, di cua
cua te » cua tu

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

• If you are trying to use Boolean operators, they must be ALL CAPS: ((su sach) OR (so sach)) ty ((hang ca) OR (hang tai)) hoi. hieu va cam duc ban thanh vi cua te~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((su sach) or (so sach)) ty ((hang ca) OR (hang tai)) hoi. hieu va cam duc ban thanh vi cua te~".
• Adding a wildcard symbol may retrieve word variants: ((su sach) or (so sach)) ty ((hang ca) OR (hang tai)) hoi. hieu va cam duc ban thanh vi cua te*.