Perhaps you should try some spelling variations:
qua thanh » quan thanh, cua thanh, qua than
ban thanh » ban hanh, ban hang
qua tham » qua cham, qua than, quan pham
thanh vi » hanh vi, thanh va, thanh ve
tang ha » lang ha, tang ma, trung ha
cua tre » cuu tre, cua triet, dua tren
ky tang » ky nang, ky dang, kho tang
soc ban » hoc ban, coc ban, so ban
te cac » tu cac, ve cac, te cao
ha hoi » hoa hoi, ha noi, xa hoi
cua te » cua tu

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