Perhaps you should try some spelling variations:
ban thanh » ban hanh, ban hang
thanh tai » thanh hai, thanh toan, doanh tai
te sach » toc sach
sach ky » sac ky, sach y, sach ty
ky dang » ky nang, ky danh
dang ma » dang mau, dang mam, dang mat
hieu ve » hieu van
hieu va » lieu va, hieu qua
xuc ban » duc ban, cuc ban, quoc ban
tai cua » thai cua, tai cuc, tri cua
cua tre » cua te, cuu tre, cua triet
ma hoi » mai hoi, xa hoi, ma hoa

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sach ky dang ma hoi. ((hieu ve) OR (hieu va)) cam xuc ban thanh tai cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ky dang ma hoi. ((hieu ve) OR (hieu va)) cam xuc ban thanh tai cua tre".
• Adding a wildcard symbol may retrieve word variants: te sach ky dang ma hoi. ((hieu ve) OR (hieu va)) cam xuc ban thanh tai cua tre*.