Perhaps you should try some spelling variations:
van chat » cao chat
ban hanh » ban hang
van cam » van nam, van lam, van cau
cuc ban » cua ban, cac ban, cuu ban
cua tre » cua te, cuu tre, cua triet
sac ky » sai ky
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 ((sac ky) or (cac ky)) nang x hoi. hieu ((van cam) or (van chat)) cuc ban hanh vi cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((sac ky) OR (cac ky)) nang x hoi. hieu ((van cam) OR (van chat)) cuc ban hanh vi cua tre.
• Adding a wildcard symbol may retrieve word variants: tu ((sac ky) or (cac ky)) nang x hoi. hieu ((van cam) or (van chat)) cuc ban hanh vi cua tre*.