Perhaps you should try some spelling variations:
thanh tai » thanh hai, thanh toan, doanh tai
ban thanh » ban hanh, ban hang
tu sach » thu sach, su sach, te sach
ky lang » ky nang, ky dang, ky tang
lang xa » lang ha, dang xay, lang van
cua tre » cuu tre, cua triet, dua tren
sach ky » sac ky, sach y, sach ty
duc ban » duc tan, duc van, dua ban
va dao » ca dao
ve dao » de dao, ve bao, te dao
cua te » cua tu

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 lang xa hoi. hieu ((ve dao) or (va dao)) duc ban thanh tai ((cua tre) or (cua te))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ky lang xa hoi. hieu ((ve dao) OR (va dao)) duc ban thanh tai ((cua tre) OR (cua te)).
• Adding a wildcard symbol may retrieve word variants: tu sach ky lang xa hoi. hieu ((ve dao) or (va dao)) duc ban thanh tai ((cua tre) or (cua te))*.