Perhaps you should try some spelling variations:
thanh dai » thanh hai, thanh tai, thanh dat
ban thanh » ban hanh, ban hang
sang tao » hang tai
te sach » toc sach
cua tre » cua te, cua triet, dua tren
duc ban » duc tan, duc van, dua ban
van lam » van nam
sach ky » sac ky, sach y, sach ty
van cam » van nam, van cau, van dam
tao hoi » tao khoi, tao boi, tay hoi
ky sang » ky nang, ky dang, ky tang
cuu tre » cau tren, cau treo

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: te sach ky sang tao hoi. hieu ((van cam) OR (van lam)) duc ban thanh dai ((cua tre) OR (cuu tre))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ky sang tao hoi. hieu ((van cam) OR (van lam)) duc ban thanh dai ((cua tre) or (cuu tre))~".
• Adding a wildcard symbol may retrieve word variants: te sach ky sang tao hoi. hieu ((van cam) OR (van lam)) duc ban thanh dai ((cua tre) or (cuu tre))*.