Perhaps you should try some spelling variations:
thu canh » thuc hanh, thu cong, thu ban
hieu van » hieu va, thien van, lieu va
canh ky » hanh ky, canh tay, nganh ky
nang xa » nang x, lang xa, nang ma
cac toc » cac nuoc, cac thoi
cac toi » cac thoi
va hanh » van hanh, va thanh, va danh
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.

• Performing a fuzzy search may retrieve terms with similar spellings: thu canh ky nang xa hoi. hieu van ((cac toc) OR (cac toi)) va hanh vi cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu canh ky nang xa hoi. hieu van ((cac toc) OR (cac toi)) va hanh vi cua tre".
• Adding a wildcard symbol may retrieve word variants: thu canh ky nang xa hoi. hieu van ((cac toc) OR (cac toi)) va hanh vi cua tre*.