Perhaps you should try some spelling variations:
cua viet » ca viet, hoa viet, cua vat
dang xay » dang van, van xay
ban hang » ngan hang
cuu tre » cua tre, cau tren, cau treo
luc ban » duc ban, cuc ban, luc bat
hang de » hoang de, hanh de, hang di
cac luc » cau luc, coc luc, cac nuoc
hieu ve » hieu va, hieu van
xay hoi » xa hoi, tay hoi, cay phoi
ky dang » ky nang, ky danh
sai ky » sac ky
ve cac » va cac, vien cac
te sai » te tai, te bai, te lai

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sai ky dang xay hoi. hieu ve cac luc ban hang de ((cua viet) or (cuu tre))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sai ky dang xay hoi. hieu ve cac luc ban hang de ((cua viet) OR (cuu tre)).
• Adding a wildcard symbol may retrieve word variants: te sai ky dang xay hoi. hieu ve cac luc ban hang de ((cua viet) or (cuu tre))*.