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