Perhaps you should try some spelling variations:
ban thanh » ban hanh, ban hang
thanh hai » thanh phan, thanh hoa, thanh san
toc sach » hoc sach, doc sach, thuoc sach
nang mai » nang ma, nang tai, lang mai
cay dua » chay dua, cay lua, cay nua
hai cuc » tai cuc, hai cua, thai cua
cuc tre » duc tre, cua tre, cuu tre
sach ty » sach y, sach tu, sach thu
hieu ve » hieu va, hieu van
mai hoi » mai khoi, dai hoi, lai hoi
ty nang » ky nang, ty xang, ty hang
ca dua » ca cua, ca da, ca lua

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 ty nang mai hoi. hieu ve ((ca dua) or (cay dua)) ban thanh hai cuc tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc sach ty nang mai hoi. hieu ve ((ca dua) OR (cay dua)) ban thanh hai cuc tre.
• Adding a wildcard symbol may retrieve word variants: toc sach ty nang mai hoi. hieu ve ((ca dua) or (cay dua)) ban thanh hai cuc tre*.