Perhaps you should try some spelling variations:
ban hanh » ban hang
thuc ban » thuoc ban, thuc dan, thu ban
te sach » toc sach
cuu tre » cua tre, cau tren, cau treo
tang xa » trang xa, tang ma, lang xa
sach 6 » sach y, sach 2
ve cac » va cac, vien cac
va dai » va dao, vi dai, va dap
vi cuu » vi luu, vinh cuu
va dau » va dao

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

• If you are trying to use Boolean operators, they must be ALL CAPS: te sach 6 tang xa hoi. hieu ((((va dai) OR (va dau))) OR (ve cac)) thuc ban hanh vi cuu tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach 6 tang xa hoi. hieu ((((va dai) OR (va dau))) or (ve cac)) thuc ban hanh vi cuu tre~".
• Adding a wildcard symbol may retrieve word variants: te sach 6 tang xa hoi. hieu ((((va dai) OR (va dau))) or (ve cac)) thuc ban hanh vi cuu tre*.