Perhaps you should try some spelling variations:
nhan thuc » nhan luc, dan thuc, toan thuc
thu sach » tu sach, thuat sach, thuoc sach
dua tren » dung tren
cua tre » cua te, cua triet, cua thep
va danh » va dinh, va dan, va hanh
danh di » danh du, xanh di, danh dien
thuc va » thuc vat, thuc dan, thuc day
va nhan » van nhan, ca nhan, va phan
hieu va » lieu va, hieu qua
nang xa » nang x, lang xa, nang ma
cuu tre » cau tren, cau treo
y nang » ky nang, ly nang, v nang

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: thu sach y nang xa hoi. hieu va nhan thuc va danh di ((((cua tre) or (dua tren))) or (cuu tre))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach y nang xa hoi. hieu va nhan thuc va danh di ((((cua tre) OR (dua tren))) OR (cuu tre)).
• Adding a wildcard symbol may retrieve word variants: thu sach y nang xa hoi. hieu va nhan thuc va danh di ((((cua tre) or (dua tren))) or (cuu tre))*.