Perhaps you should try some spelling variations:
ban hang » ngan hang
dang xay » dang van, van xay
hang hai » hoang hai, hang tai, thanh hai
toc sac » toc sach, toc san, hoc sach
ky dang » ky nang, ky danh
xay hoi » xa hoi, tay hoi, cay phoi
hieu ve » hieu va, hieu van
cua tre » cuu tre, cua triet, dua tren
cao duc » dao duc, cao suc, giao duc
cua te » cua tu
sac ky » cac ky, sai ky

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

• Performing a fuzzy search may retrieve terms with similar spellings: toc sac ky dang xay hoi. hieu ve ((cao duc) or (pham duc)) ban hang hai ((cua tre) OR (cua te))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc sac ky dang xay hoi. hieu ve ((cao duc) OR (pham duc)) ban hang hai ((cua tre) OR (cua te)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "toc sac ky dang xay hoi. hieu ve ((cao duc) or (pham duc)) ban hang hai ((cua tre) OR (cua te))".
• Adding a wildcard symbol may retrieve word variants: toc sac ky dang xay hoi. hieu ve ((cao duc) or (pham duc)) ban hang hai ((cua tre) OR (cua te))*.