Perhaps you should try some spelling variations:
nham thuc » nhan thuc, nam thuc, nham thu
cua triet » cua viet, su triet, va triet
qua nham » qua nhat, qua cham, sua nham
toc sach » doc sach, thuoc sach, nuoc sach
hoc sach » hoc sinh, hoc cac, hoc anh
thuc va » thuc vat, thuc dan, thuc day
va danh » va dinh, va dan, va hanh
danh di » danh du, xanh di, danh dien
cuu tre » cua tre, cau tren, cau treo
v nang » va nang, vu nang, van nang
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: ((toc sach) or (hoc sach)) v nang x hoi. hieu qua nham thuc va danh di ((cua triet) or (cuu tre))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((toc sach) OR (hoc sach)) v nang x hoi. hieu qua nham thuc va danh di ((cua triet) OR (cuu tre)).
• Adding a wildcard symbol may retrieve word variants: ((toc sach) or (hoc sach)) v nang x hoi. hieu qua nham thuc va danh di ((cua triet) or (cuu tre))*.