Perhaps you should try some spelling variations:
hieu ve » hieu va, hieu van
ve chat » va chat, van chat
xuc van » duc van, luc van, vuc van
xuc ban » duc ban, cuc ban, quoc ban
cua tre » cua te, cuu tre, cua triet
tu san » thu san, tu ban, vu san
tu can » tu ban, tu cac, thu canh
vi cua » vai cua, di cua
x hoi » xa hoi, o hoi, x ho

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((tu san) OR (tu can)) ky nang x hoi. hieu ve chat ((xuc van) or (xuc ban)) hanh vi cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu san) OR (tu can)) ky nang x hoi. hieu ve chat ((xuc van) OR (xuc ban)) hanh vi cua tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu san) OR (tu can)) ky nang x hoi. hieu ve chat ((xuc van) or (xuc ban)) hanh vi cua tre*".