Perhaps you should try some spelling variations:
ban thanh » ban hanh, ban hang
vien cac » vien bach, vien dai, vien da
thanh vi » hanh vi, thanh va, thanh ve
qua tham » qua cham, qua than, qua thanh
tham soc » cham soc, tham nuoc, thai son
hoa hoi » khoa hoi, hoa hoc, hoa doi
soc ban » hoc ban, coc ban, so ban
cua tre » cua te, cua triet, dua tren
cuu tre » cau tren, cau treo
ha hoi » ha noi, xa hoi, va hoi

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

• If you are trying to use Boolean operators, they must be ALL CAPS: vien cac ky nang ((ha hoi) OR (hoa hoi)). hieu qua tham soc ban thanh vi ((cua tre) OR (cuu tre))~.
• Adding a wildcard symbol may retrieve word variants: vien cac ky nang ((ha hoi) or (hoa hoi)). hieu qua tham soc ban thanh vi ((cua tre) or (cuu tre))*.