Perhaps you should try some spelling variations:
thanh ve » hanh ve, thanh va, thanh vien
thuc gia » thuc giai, thue gia, thuc dia
cac thuc » cach thuc, cac thu, can thuc
so sach » bo sach, co sach, hoc sach
cuu tre » cua tre, cau tren, cau treo
hieu va » lieu va, hieu qua
lang xa » lang ha, dang xay, lang van
ky lang » ky nang, ky dang, ky tang
so sanh » do sanh
su viet » so viet

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) OR (so sanh)) ky lang xa hoi. hieu va cac thuc gia thanh ve ((cuu tre) or (su viet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((so sach) OR (so sanh)) ky lang xa hoi. hieu va cac thuc gia thanh ve ((cuu tre) OR (su viet))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((so sach) OR (so sanh)) ky lang xa hoi. hieu va cac thuc gia thanh ve ((cuu tre) or (su viet))*".