Perhaps you should try some spelling variations:
ban thanh » ban hanh, ban hang
qua tham » qua cham, qua than, qua thanh
tham soc » cham soc, tham nuoc, thai son
thanh vi » hanh vi, thanh va, thanh ve
tang ha » lang ha, trung ha, tang van
tang ma » mang may, tang van
soc ban » hoc ban, coc ban, so ban
cua tre » cua te, cuu tre, cua triet
te cac » tu cac, ve cac, te cao
vi cua » vai cua, di cua

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "te cac ky ((tang ha) OR (tang ma)) hoi. hieu qua tham soc ban thanh vi cua tre~".
• Adding a wildcard symbol may retrieve word variants: te cac ky ((tang ha) OR (tang ma)) hoi. hieu qua tham soc ban thanh vi cua tre*.