Perhaps you should try some spelling variations:
thuc ban » thuoc ban, thuc dan, thu ban
toc sach » hoc sach, doc sach, thuoc sach
hanh vai » hanh vi, hanh va, hanh tai
ban hanh » ban hang
cao thuc » cao thuoc, bao thuc, can thuc
cua tre » cuu tre, cua triet, dua tren
nang xa » nang x, lang xa, nang ma
va cao » va cac, va co, va dao
v nang » va nang, vu nang, van nang
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) OR (toc sach)) v 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) OR (toc sach)) v 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) OR (toc sach)) v 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) OR (toc sach)) v nang xa hoi. lieu va cao thuc ban hanh vai ((cua tre) or (cua te))*.