Perhaps you should try some spelling variations:
thuoc sach » hoc sach, nuoc sach, thuat sach
thanh ve » thanh va, thanh vien, thanh van
nang xa » nang x, lang xa, nang ma
hieu va » lieu va, hieu qua
cao cuc » cao duc, cao suc, cho cuoc
cuc ban » cua ban, cac ban, cuu ban
hanh ve » hanh vi, hanh va, hanh kem
cua tre » cuu tre, cua triet, dua tren
v nang » va nang, vu nang, van nang
va cao » va cac, va co, va dao
sach v » sach va, sach y, sach 2
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: thuoc sach v nang xa hoi. hieu va cao cuc ban ((thanh ve) OR (hanh ve)) ((cua tre) or (cua te))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuoc sach v nang xa hoi. hieu va cao cuc ban ((thanh ve) OR (hanh ve)) ((cua tre) OR (cua te)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "thuoc sach v nang xa hoi. hieu va cao cuc ban ((thanh ve) OR (hanh ve)) ((cua tre) or (cua te))".
• Adding a wildcard symbol may retrieve word variants: thuoc sach v nang xa hoi. hieu va cao cuc ban ((thanh ve) OR (hanh ve)) ((cua tre) or (cua te))*.