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
su dan » su dang, cu dan, so dan
dan ky » van ky
nang o » nang co, nang ho, nang ro
vi cua » vai cua, di cua
cua te » cua tu
o hoi » co hoi, o hoc, o hai

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 o hoi. hieu qua cam xuc ((van hanh) OR (van anh)) vi cua te~.
• Adding a wildcard symbol may retrieve word variants: su dan ky nang o hoi. hieu qua cam xuc ((van hanh) or (van anh)) vi cua te*.