Perhaps you should try some spelling variations:
ban hang » ngan hang
cua viet » ca viet, hoa viet, cua dieu
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, cam tu, nam thuc
ma hoi » mai hoi, xa hoi, ma hoa
ve cam » ve cham, ve cac, va cam

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 hoi. hieu ve cam tuc ((ban hanh) or (ban hang)) va ((cua viet) OR (cua vat))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sanh ky nang ma hoi. hieu ve cam tuc ((ban hanh) OR (ban hang)) va ((cua viet) OR (cua vat)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "so sanh ky nang ma hoi. hieu ve cam tuc ((ban hanh) or (ban hang)) va ((cua viet) OR (cua vat))".
• Adding a wildcard symbol may retrieve word variants: so sanh ky nang ma hoi. hieu ve cam tuc ((ban hanh) or (ban hang)) va ((cua viet) OR (cua vat))*.