Perhaps you should try some spelling variations:
hieu va » lieu va, hieu qua
cam tuc » cam xuc, cam tu, nam thuc
va hanh » van hanh, va thanh, ban hanh
va danh » va dinh, va dan, dia danh
vai cua » dai cua, hai cua, lai cua
va cam » va cham, va cac, va cao
vi cua » di cua
x hoi » xa hoi, o hoi, x ho

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 nang x hoi. hieu va cam tuc ((va hanh) OR (va danh)) ((vi cua) or (vai cua)) tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu cac ky nang x hoi. hieu va cam tuc ((va hanh) OR (va danh)) ((vi cua) OR (vai cua)) tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu cac ky nang x hoi. hieu va cam tuc ((va hanh) OR (va danh)) ((vi cua) or (vai cua)) tre".
• Adding a wildcard symbol may retrieve word variants: tu cac ky nang x hoi. hieu va cam tuc ((va hanh) OR (va danh)) ((vi cua) or (vai cua)) tre*.