Perhaps you should try some spelling variations:
ban thanh » ban hanh, ban hang
thanh di » thanh doi, thanh de, thanh do
tham soc » cham soc, tham nuoc, thai son
qua tham » qua cham, qua than, qua thanh
cua tre » cua te, cuu tre, cua triet
soc ban » hoc ban, coc ban, so ban
hoa hoi » khoa hoi, hoa hoc, hoa doi
ky tang » ky nang, ky dang, kho tang
ha hoi » ha noi, xa hoi, va hoi
ve cac » va cac, vien cac
di cua » dai cua, doi cua, de cua
te cac » tu cac, te cao, de cac

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((te cac) OR (ve cac)) ky tang ((ha hoi) or (hoa hoi)). hieu qua tham soc ban thanh di cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((te cac) OR (ve cac)) ky tang ((ha hoi) OR (hoa hoi)). hieu qua tham soc ban thanh di cua tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((te cac) OR (ve cac)) ky tang ((ha hoi) or (hoa hoi)). hieu qua tham soc ban thanh di cua tre*".