Perhaps you should try some spelling variations:
ban hanh » ban hang
ky danh » ky anh
ky dang » ky nang
mai hoi » mai khoi, dai hoi, lai hoi
va chat » van chat, cao chat, hoa chat
xuc ban » duc ban, cuc ban, quoc ban
vi cua » vai cua, di cua
tu sac » tu sach, tu cac, tu san
cua tu » cua tuc, cua su, cua cu

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sac ((ky danh) OR (ky dang)) mai hoi. hieu ((va chat) or (va phat)) xuc ban hanh vi cua tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sac ((ky danh) OR (ky dang)) mai hoi. hieu ((va chat) OR (va phat)) xuc ban hanh vi cua tu.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sac ((ky danh) OR (ky dang)) mai hoi. hieu ((va chat) or (va phat)) xuc ban hanh vi cua tu".
• Adding a wildcard symbol may retrieve word variants: tu sac ((ky danh) OR (ky dang)) mai hoi. hieu ((va chat) or (va phat)) xuc ban hanh vi cua tu*.