Perhaps you should try some spelling variations:
ban chinh » lan chinh, van chinh, hanh chinh
van chat » cao chat
nang ma » tang ma, sang ma, nang cao
ve cham » va cham, vu cham, ve chim
ve chat » va chat
cuc ban » cua ban, cac ban, cuu ban
cua tre » cua te, cuu tre, cua triet
tu sai » tu bai, tu san, tu cai
sai ky » sac ky
ma hoi » mai hoi, xa hoi, ma hoa

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sai ky nang ma hoi. hieu ((ve cham) or (((ve chat) or (van chat)))) cuc ban chinh tri cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sai ky nang ma hoi. hieu ((ve cham) OR (((ve chat) OR (van chat)))) cuc ban chinh tri cua tre.
• Adding a wildcard symbol may retrieve word variants: tu sai ky nang ma hoi. hieu ((ve cham) or (((ve chat) or (van chat)))) cuc ban chinh tri cua tre*.