Perhaps you should try some spelling variations:
ban thanh » ban hanh, ban hang
qua thanh » quan thanh, cua thanh, qua than
thanh vi » hanh vi, thanh va, thanh ve
kho tang » cao tang
qua tham » qua cham, qua than, quan pham
cua tre » cua te, cuu tre, cua triet
ky tang » ky nang, ky dang, ky trong
soc ban » hoc ban, coc ban, so ban
vi cua » vai cua, di cua
te cac » tu cac, ve cac, te cao
ha hoi » hoa hoi, ha noi, xa 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: te cac ((ky tang) OR (kho tang)) ha hoi. hieu ((qua tham) OR (qua thanh)) soc ban thanh vi cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te cac ((ky tang) OR (kho tang)) ha hoi. hieu ((qua tham) or (qua thanh)) soc ban thanh vi cua tre~".
• Adding a wildcard symbol may retrieve word variants: te cac ((ky tang) OR (kho tang)) ha hoi. hieu ((qua tham) or (qua thanh)) soc ban thanh vi cua tre*.