Perhaps you should try some spelling variations:
ban hanh » ban hang
chat xuc » chat huu, cam xuc, chao xu
hieu va » lieu va, hieu qua
ky dang » ky nang
ky danh » ky anh
mai hoi » mai khoi, dai hoi, lai hoi
va chat » van chat, va phat, cao chat
xuc ban » duc ban, cuc ban, quoc ban
di cua » dai cua, doi cua, de cua
vi cua » vai cua
tu sac » tu sach, tu cac, tu san

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