Perhaps you should try some spelling variations:
ban hang » ngan hang
cua viet » ca viet, hoa viet, cua vat
so sanh » do sanh
sanh ky » hanh ky, sang ky, nganh ky
nang ma » tang ma, sang ma, nang cao
hieu ve » hieu va, hieu van
cam tuc » cam xuc, nam thuc, dam thuc
cam tu » cam thu, nam tu, dam tu
va cua » va chua, via cua, ca cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: so sanh ky nang ma hoa. hieu ve ((cam tuc) or (cam tu)) ((ban hanh) or (ban hang)) va cua viet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sanh ky nang ma hoa. hieu ve ((cam tuc) OR (cam tu)) ((ban hanh) OR (ban hang)) va cua viet.
• Adding a wildcard symbol may retrieve word variants: so sanh ky nang ma hoa. hieu ve ((cam tuc) or (cam tu)) ((ban hanh) or (ban hang)) va cua viet*.