Perhaps you should try some spelling variations:
ban hanh » ban hang
cua tre » cua te, cuu tre, cua triet
xuc ban » duc ban, cuc ban, quoc ban
va chat » van chat, va phat, cao chat
ve cham » va cham, ve chat, vu cham
nang ma » tang ma, sang ma, nang cao
ma hoi » mai hoi, xa hoi, ma hoa
sac ky » cac ky
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: tu ((sac ky) or (sai ky)) nang ma hoi. hieu ((ve cham) or (va chat)) xuc ban hanh vi cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((sac ky) OR (sai ky)) nang ma hoi. hieu ((ve cham) OR (va chat)) xuc ban hanh vi cua tre.
• Adding a wildcard symbol may retrieve word variants: tu ((sac ky) or (sai ky)) nang ma hoi. hieu ((ve cham) or (va chat)) xuc ban hanh vi cua tre*.