Perhaps you should try some spelling variations:
ban hanh » ban hang
hanh vai » hanh vi, hanh va, hanh tai
cao thuc » cao thuoc, bao thuc, can thuc
thuc ban » thuoc ban, thuc dan, thu ban
cua tre » cuu tre, cua triet, dua tren
sach va » sach xa, sach ha, sach dao
nang xa » nang x, lang xa, nang ma
va cao » va cac, va co, va dao
sach v » sach y, sach 2, sach vay
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: te ((sach v) OR (sach va)) nang xa hoi. lieu va cao thuc ban hanh vai ((cua tre) or (cua te))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te ((sach v) OR (sach va)) nang xa hoi. lieu va cao thuc ban hanh vai ((cua tre) OR (cua te)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "te ((sach v) OR (sach va)) nang xa hoi. lieu va cao thuc ban hanh vai ((cua tre) or (cua te))".
• Adding a wildcard symbol may retrieve word variants: te ((sach v) OR (sach va)) nang xa hoi. lieu va cao thuc ban hanh vai ((cua tre) or (cua te))*.