Perhaps you should try some spelling variations:
ban thanh » ban hanh, ban hang
thanh vi » hanh vi, thanh va, thanh ve
dau tren » dau tien, dat tren, dau tieng
tu sach » thu sach, su sach, te sach
sach ty » sach y, sach tu, sach thu
ty lang » tay lang, ty xang, ty hang
lang xa » lang ha, dang xay, lang van
xuc ban » duc ban, cuc ban, quoc ban
va cau » van cau, va cac, va cao
va dau » va dao
vi dau » vi dai, bi dau, ve dau

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 ty lang xa hoi. hieu ((va cau) or (va dau)) xuc ban thanh vi dau tren~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ty lang xa hoi. hieu ((va cau) OR (va dau)) xuc ban thanh vi dau tren.
• Adding a wildcard symbol may retrieve word variants: tu sach ty lang xa hoi. hieu ((va cau) or (va dau)) xuc ban thanh vi dau tren*.