Perhaps you should try some spelling variations:
van hanh » van thanh, ban hanh, van ban
qua cam » qua cham, qua cac, qua ca
van anh » van thanh, tuan anh, van minh
vai cua » dai cua, hai cua, lai cua
su dan » su dang, cu dan, so dan
dan ky » van ky
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.

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