Perhaps you should try some spelling variations:
ban thanh » ban hanh, ban hang
sach vay » sach hay, sach nay, sach dao
thanh le » thinh le, thanh ve, thanh de
nang xa » nang x, lang xa, nang ma
sach va » sach xa, sach ha, sach dao
hieu va » lieu va, hieu qua
duc ban » duc tan, duc van, dua ban
cua tre » cua te, cuu tre, cua triet
ha duc » ho duc, ha dac, xa duc
le cua » ly cua
va ha » va hoa, va kha, va han

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

• Performing a fuzzy search may retrieve terms with similar spellings: toc ((((sach vay) OR (sach va))) or (sach y)) nang xa hoi. hieu va ha duc ban thanh le cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc ((((sach vay) OR (sach va))) OR (sach y)) nang xa hoi. hieu va ha duc ban thanh le cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "toc ((((sach vay) OR (sach va))) or (sach y)) nang xa hoi. hieu va ha duc ban thanh le cua tre".
• Adding a wildcard symbol may retrieve word variants: toc ((((sach vay) OR (sach va))) or (sach y)) nang xa hoi. hieu va ha duc ban thanh le cua tre*.