Perhaps you should try some spelling variations:
ban hanh » ban hang
chat cuu » chat huu, chat cua, cham cuu
hieu va » lieu va, hieu qua
ky lang » ky nang, ky dang, tay lang
vai cua » dai cua, hai cua, lai cua
ky tang » ky nang, ky dang, kho tang
mai hoi » mai khoi, dai hoi, lai hoi
va chat » van chat, va phat, cao chat
cuu ban » cuu van, cua ban, cuu san
vi cua » di cua
tu can » tu ban, tu cac, thu canh

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

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