Perhaps you should try some spelling variations:
nhanh thanh » phan thanh, nhanh tinh
danh thanh » dinh thanh, dang thanh, ban thanh
thu sach » tu sach, thuat sach, thuoc sach
ky doanh » ly doanh, ky danh, ty doanh
sach ky » sac ky, sach y, sach ty
tai hoi » tai khoi, dai hoi, tai hai
hieu vi » hieu voi, hieu va, hieu ve
duc ban » duc tan, duc van, dua ban
cua tre » cua te, cuu tre, cua triet
pham » phan

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 ky doanh tai hoi. hieu vi pham duc ban ((danh thanh) or (nhanh thanh)) cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach ky doanh tai hoi. hieu vi pham duc ban ((danh thanh) OR (nhanh thanh)) cua tre.
• Adding a wildcard symbol may retrieve word variants: thu sach ky doanh tai hoi. hieu vi pham duc ban ((danh thanh) or (nhanh thanh)) cua tre*.