Perhaps you should try some spelling variations:
ban hang » ngan hang
ve cham » va cham, ve chat, ve chim
vu cham » va cham, vu kham, tu cham
hang vi » hang va, hanh vi, hang di
nang ma » tang ma, sang ma, nang cao
soc ban » hoc ban, coc ban, so ban
vi cua » vai cua, di cua
tu sac » tu sach, tu cac, tu san
ma hoi » mai hoi, xa hoi, ma hoa
tu ban » thu ban, te ban
cua te » cua tu

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

• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sac) OR (tu ban)) ky nang ma hoi. hieu ((ve cham) OR (vu cham)) soc ban hang vi cua te~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu sac) or (tu ban)) ky nang ma hoi. hieu ((ve cham) OR (vu cham)) soc ban hang vi cua te~".
• Adding a wildcard symbol may retrieve word variants: ((tu sac) or (tu ban)) ky nang ma hoi. hieu ((ve cham) OR (vu cham)) soc ban hang vi cua te*.