Perhaps you should try some spelling variations:
ban thanh » ban hanh, ban hang
thanh vai » thanh hai, thanh van, thanh tai
tu sach » thu sach, su sach, te sach
ky tang » ky nang, kho tang, ky trong
ky dang » ky nang, ky danh
van cam » van lam, van cau, van dam
qua ban » cua ban, qua quan
vai cuu » vai cua
cuu tre » cua tre, cau tren, cau treo

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 ((ky tang) OR (ky dang)) ma hoa. hieu ((van cam) or (van nam)) qua ban thanh vai cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ((ky tang) OR (ky dang)) ma hoa. hieu ((van cam) OR (van nam)) qua ban thanh vai cuu tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ((ky tang) OR (ky dang)) ma hoa. hieu ((van cam) or (van nam)) qua ban thanh vai cuu tre*".