Perhaps you should try some spelling variations:
ban thanh » ban hanh, ban hang
thanh hai » thanh phan, thanh hoa, thanh san
dua tren » dung tren
danh xay » dang xay, manh xay, anh xay
cac xuc » cam xuc, cac nuoc, chat xuc
xuc ban » duc ban, cuc ban, quoc ban
cuu tre » cua tre, cau tren, cau treo
sach ky » sac ky, sach ty, sach kem
hieu ve » hieu va, hieu van
xay hoi » xa hoi, tay hoi, cay phoi
ve cac » va cac, vien cac

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

• Performing a fuzzy search may retrieve terms with similar spellings: su ((sach ky) or (sach y)) danh xay hoi. hieu ve cac xuc ban thanh hai ((dua tren) or (cuu tre))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su ((sach ky) OR (sach y)) danh xay hoi. hieu ve cac xuc ban thanh hai ((dua tren) OR (cuu tre)).
• Adding a wildcard symbol may retrieve word variants: su ((sach ky) or (sach y)) danh xay hoi. hieu ve cac xuc ban thanh hai ((dua tren) or (cuu tre))*.