Perhaps you should try some spelling variations:
nam thuc » nam thuoc, am thuc, nam thu
van hanh » van thanh, ban hanh, van anh
te sach » toc sach
nang xa » nang x, lang xa, nang ma
hieu va » lieu va, hieu qua
cam tuc » cam tu, dam thuc, nam truc
cua tre » cua te, cuu tre, cua triet
y nang » ky nang, ly nang, v nang
vi cua » vai cua, di cua

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 va ((((cam tuc) OR (nam thuc))) OR (cam xuc)) van hanh vi cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach y nang xa hoi. hieu va ((((cam tuc) OR (nam thuc))) or (cam xuc)) van hanh vi cua tre~".
• Adding a wildcard symbol may retrieve word variants: te sach y nang xa hoi. hieu va ((((cam tuc) OR (nam thuc))) or (cam xuc)) van hanh vi cua tre*.