Perhaps you should try some spelling variations:
ban hanh » ban hang
va cham » va chat
soc ban » hoc ban, coc ban, so ban
ky sang » ky nang, ky dang, ky tang
sang ma » tang ma, nang ma, sang tao
va tham » van tham, va thanh, va thuat
vi cua » vai cua, di cua
tu sac » tu sach, tu cac, tu bac
ma hoi » mai hoi, xa hoi, ma hoa
tu san » thu san, tu ban, tu can
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 san)) ky sang ma hoi. hieu ((va cham) OR (va tham)) soc ban hanh vi cua te~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu sac) or (tu san)) ky sang ma hoi. hieu ((va cham) OR (va tham)) soc ban hanh vi cua te~".
• Adding a wildcard symbol may retrieve word variants: ((tu sac) or (tu san)) ky sang ma hoi. hieu ((va cham) OR (va tham)) soc ban hanh vi cua te*.