Perhaps you should try some spelling variations:
chai thoi » chi thoi, chuoi thoi, chat thai
chai hoi » cham hoi, chai khoa, cau hoi
chat xuc » chat huu, cam xuc, chao xu
ban hanh » ban hang
ky lang » ky nang, ky dang, ky tang
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
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 cac ky lang ((chai hoi) or (chai thoi)). 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 cac ky lang ((chai hoi) OR (chai thoi)). 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 cac ky lang ((chai hoi) or (chai thoi)). hieu va chat xuc ban hanh ((vi cua) OR (vai cua)) te".
• Adding a wildcard symbol may retrieve word variants: tu cac ky lang ((chai hoi) or (chai thoi)). hieu va chat xuc ban hanh ((vi cua) OR (vai cua)) te*.