Perhaps you should try some spelling variations:
bang hanh » bang thanh, ban hanh, bang hinh
tang van » dang van, hoang van, trong van
cac kho » cac khoi, cac khoa, cac khu
tang ma » mang may
hieu ve » hieu va, hieu van
ve cham » va cham, ve chat, vu cham
cham so » cham soc, cham o, ham so
so bang » so dang, so lang, co bang
cua tre » cua te, cuu tre, cua triet
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 cac kho ((tang ma) or (tang van)) hoi. hieu ve cham so bang hanh vi cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu cac kho ((tang ma) OR (tang van)) hoi. hieu ve cham so bang hanh vi cua tre*.