Perhaps you should try some spelling variations:
ban banh » ban hanh, ban danh, ban thanh
sach ty » sach y, sach tu, sach thu
ban anh » ban hanh, ban danh, bang anh
hieu va » lieu va, hieu qua
tu sach » thu sach, su sach, te sach
nang xa » nang x, lang xa, mang xa
nang ma » tang ma, sang ma, nang cao
va cam » va cham, va cac, va cao
cua te » cua tu

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 ((nang xa) or (nang ma)) hoi. hieu va cam xuc ((ban banh) or (ban anh)) dai cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ty ((nang xa) OR (nang ma)) hoi. hieu va cam xuc ((ban banh) OR (ban anh)) dai cua te.
• Adding a wildcard symbol may retrieve word variants: tu sach ty ((nang xa) or (nang ma)) hoi. hieu va cam xuc ((ban banh) or (ban anh)) dai cua te*.