Perhaps you should try some spelling variations:
thuoc sach » hoc sach, nuoc sach, thuat sach
bat thanh » ban thanh, bac thanh, dat thanh
thanh ve » hanh ve, thanh va, thanh vien
luc bat » suc bat, luc nhat, luat bat
cua tre » cuu tre, cua triet, dua tren
hieu va » lieu va, hieu qua
cao luc » bao luc, cao duc, cao suc
va cao » va cac, va co, va dao
y nang » ky nang, ly nang, may nang
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: thuoc sach ((y nang) OR (v nang)) xa hoi. hieu va cao luc bat 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 (v nang)) xa hoi. hieu va cao luc bat 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 (v nang)) xa hoi. hieu va cao luc bat thanh ve ((cua tre) or (cua te))".
• Adding a wildcard symbol may retrieve word variants: thuoc sach ((y nang) OR (v nang)) xa hoi. hieu va cao luc bat thanh ve ((cua tre) or (cua te))*.