Perhaps you should try some spelling variations:
cua triet » cua viet, su triet
va triet » va thiet, va trien, ve triet
nang xa » nang x, lang xa, nang ma
hieu ve » hieu va, hieu van
va hanh » van hanh, va thanh, va danh
tu van » tu va
cam tu » cam thu, dam tu, tam tu
nam tu » nam thu, nam thuc

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: tu van ky nang xa hoi. hieu ve ((cam tu) OR (nam tu)) va hanh vi ((cua triet) OR (va triet))~.
• Adding a wildcard symbol may retrieve word variants: tu van ky nang xa hoi. hieu ve ((cam tu) or (nam tu)) va hanh vi ((cua triet) or (va triet))*.