Perhaps you should try some spelling variations:
cach thuc » anh thuc, cac thu
thuc gia » thuc giai, thue gia, thuc dia
thanh ve » hanh ve, thanh va, thanh vien
su triet » su viet, su tien, ve triet
so sach » so sanh, bo sach, co sach
sach ky » sac ky, sach y, sach ty
nang xa » nang x, lang xa, nang ma
hieu va » lieu va, hieu qua
va cach » va cac
cuu tre » cua tre, cau tren, cau treo

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

• Performing a fuzzy search may retrieve terms with similar spellings: so sach ky nang xa hoi. hieu va cach thuc gia thanh ve ((cuu tre) or (su triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sach ky nang xa hoi. hieu va cach thuc gia thanh ve ((cuu tre) OR (su triet)).
• Adding a wildcard symbol may retrieve word variants: so sach ky nang xa hoi. hieu va cach thuc gia thanh ve ((cuu tre) or (su triet))*.