Perhaps you should try some spelling variations:
nang xa » nang x, lang xa, nang ma
va hanh » van hanh, va thanh, va danh
cac xuc » cac nuoc, chat xuc, cac cuoc
hieu ve » hieu va, hieu van
cua tre » cua te, cuu tre, cua triet
sach 2 » sach y
sach v » sach va, sach y, sach vay
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: tu ((sach v) OR (sach 2)) nang xa hoi. hieu ve ((cac xuc) OR (cam xuc)) va hanh vi cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu ((sach v) or (sach 2)) nang xa hoi. hieu ve ((cac xuc) OR (cam xuc)) va hanh vi cua tre~".
• Adding a wildcard symbol may retrieve word variants: tu ((sach v) or (sach 2)) nang xa hoi. hieu ve ((cac xuc) OR (cam xuc)) va hanh vi cua tre*.