Perhaps you should try some spelling variations:
cua viet » ca viet, hoa viet, cua vat
cham dua » chay dua, cham giua, pham duc
hang vai » hang va, hang tai, hang hai
ban hang » ngan hang
mai hoi » mai khoi, dai hoi, mai doi
lai hoi » dai hoi, lai hoa, lai roi
hieu ve » hieu va, hieu van
ve cham » va cham, ve chat, vu cham
dua ban » dia ban, cua ban, qua ban
vai cua » dai cua, hai cua, lai cua
sai ky » sac ky
me hoi » le hoi
tu sai » tu bai, tu san, tu cai

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sai ky nang ((me hoi) or (((mai hoi) OR (lai hoi)))). hieu ve cham dua ban hang vai cua viet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sai ky nang ((me hoi) OR (((mai hoi) OR (lai hoi)))). hieu ve cham dua ban hang vai cua viet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sai ky nang ((me hoi) or (((mai hoi) OR (lai hoi)))). hieu ve cham dua ban hang vai cua viet".
• Adding a wildcard symbol may retrieve word variants: tu sai ky nang ((me hoi) or (((mai hoi) OR (lai hoi)))). hieu ve cham dua ban hang vai cua viet*.