Perhaps you should try some spelling variations:
ban thanh » ban hanh, ban hang
van hanh » van thanh, ban hanh, van anh
te sach » toc sach
xang xa » lang xa, mang xa, ang xa
hieu va » lieu va, hieu qua
cuu tre » cua tre, cau tren, cau treo
y xang » ty xang
va dan » ca dan, va dao, va dau
di cuu » di cau, di cua, dinh cuu
va am » va lam, va cam

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sach y xang xa hoi. hieu va am thuc ((((ban thanh) or (va dan))) or (van hanh)) di cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach y xang xa hoi. hieu va am thuc ((((ban thanh) OR (va dan))) OR (van hanh)) di cuu tre.
• Adding a wildcard symbol may retrieve word variants: te sach y xang xa hoi. hieu va am thuc ((((ban thanh) or (va dan))) or (van hanh)) di cuu tre*.