Perhaps you should try some spelling variations:
toc cach » hoc cach, toc sach, truoc cach
van hanh » van thanh, ban hanh, van anh
chat huu » pham huu
chat xuc » cam xuc, chao xu, chat cua
cach tu » cach thuc
hieu ve » hieu va, hieu van
lang xa » lang ha, dang xay, lang van
nang xa » nang x, nang ma, mang xa
cua tre » cua te, cuu tre, cua triet
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: toc cach tu ((nang xa) OR (lang xa)) hoi. hieu ve ((chat xuc) OR (chat huu)) van hanh vi cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "toc cach tu ((nang xa) OR (lang xa)) hoi. hieu ve ((chat xuc) or (chat huu)) van hanh vi cua tre~".
• Adding a wildcard symbol may retrieve word variants: toc cach tu ((nang xa) OR (lang xa)) hoi. hieu ve ((chat xuc) or (chat huu)) van hanh vi cua tre*.