Perhaps you should try some spelling variations:
thuoc sach » hoc sach, nuoc sach, thuat sach
nham thuc » nhan thuc, nam thuc, nham thu
cua triet » cua viet, su triet, va triet
hieu va » lieu va, hieu qua
va nham » va cham, va tham, va nha
va dinh » van dinh, va kinh, va tinh
vai cua » dai cua, hai cua, lai cua
y nang » ky nang, ly nang, v nang
va dan » ca dan, va dao, va dau
x hoi » xa hoi, o hoi, x ho

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 x hoi. hieu va nham thuc ((va dan) or (va dinh)) vai cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuoc sach y nang x hoi. hieu va nham thuc ((va dan) OR (va dinh)) vai cua triet.
• Adding a wildcard symbol may retrieve word variants: thuoc sach y nang x hoi. hieu va nham thuc ((va dan) or (va dinh)) vai cua triet*.