Perhaps you should try some spelling variations:
ban thanh » ban hanh, ban hang
sach hay » sach han, sach ha, sach nay
thanh va » thanh van, hanh va, thanh ha
nang xa » nang x, lang xa, nang ma
hieu va » lieu va, hieu qua
cac xuc » cam xuc, cac nuoc, chat xuc
xuc ban » duc ban, cuc ban, quoc ban
cua tre » cua te, cuu tre, cua triet
sai ky » sac ky
va cua » va chua, via cua, ca cua

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 hay) or (sach y))) or (sai ky)) nang xa hoi. hieu va cac xuc ban thanh va cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((((sach hay) OR (sach y))) OR (sai ky)) nang xa hoi. hieu va cac xuc ban thanh va cua tre.
• Adding a wildcard symbol may retrieve word variants: tu ((((sach hay) or (sach y))) or (sai ky)) nang xa hoi. hieu va cac xuc ban thanh va cua tre*.