Perhaps you should try some spelling variations:
cham thuc » nham thuc, pham thuc, tham thuc
te sach » toc sach
nang xa » nang x, lang xa, nang ma
hieu ve » hieu va, hieu van
ve cham » va cham, ve chat, vu cham
thuc va » thuc vat, thuc dan, thuc day
va danh » va dinh, va dan, va hanh
danh di » danh du, xanh di, danh dien
y nang » ky nang, ly nang, v nang

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

• If you are trying to use Boolean operators, they must be ALL CAPS: te sach y nang xa hoi. hieu ve cham thuc va danh di ((cua vat) OR (hoa viet))~.
• Adding a wildcard symbol may retrieve word variants: te sach y nang xa hoi. hieu ve cham thuc va danh di ((cua vat) or (hoa viet))*.