Perhaps you should try some spelling variations:
ban thanh » ban hanh
qua than » qua thanh, qua phan, qua tan
tang hoa » hang hoa, tang ha, tang ho
qua tham » qua cham, qua thanh, quan pham
ban hang » ngan hang
cua tre » cua te, cuu tre, cua triet
ky tang » ky nang, ky dang, kho tang
hoa hoi » khoa hoi, hoa hoc, hoa doi
vi cua » vai cua, di cua
te cac » tu cac, ve cac, te cao

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