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 cham » va chat, va tham
ve cham » ve chat, vu cham, ve chim
tang ma » mang may, tang van
nang ma » sang ma, nang cao, mang may
sac ky » cac ky, sai ky
vi cua » vai cua, di cua
tu sac » tu sach, tu cac, tu san

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 ((nang ma) OR (tang ma)) hoi. hieu ((ve cham) or (va cham)) xuc ban hanh vi cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sac ky ((nang ma) OR (tang ma)) hoi. hieu ((ve cham) OR (va cham)) xuc ban hanh vi cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sac ky ((nang ma) OR (tang ma)) hoi. hieu ((ve cham) or (va cham)) xuc ban hanh vi cua tre".
• Adding a wildcard symbol may retrieve word variants: tu sac ky ((nang ma) OR (tang ma)) hoi. hieu ((ve cham) or (va cham)) xuc ban hanh vi cua tre*.