Perhaps you should try some spelling variations:
chat xuc » chat huu, cam xuc, chao xu
ban hanh » ban hang
ky lang » ky dang, ky tang, tay lang
mai hoi » mai khoi, dai hoi, lai hoi
hieu va » lieu va, hieu qua
va chat » van chat, va phat, cao chat
xuc ban » duc ban, cuc ban, quoc ban
vai cua » dai cua, hai cua, lai cua
tu san » thu san, tu ban, tu can
vi cua » di cua

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

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