Perhaps you should try some spelling variations:
van hanh » van thanh, ban hanh, van anh
qua cam » qua cham, qua cac, qua ca
xuc van » duc van, luc van, vuc van
su can » tu can, su han
su van » tu van, vu van
su cao » cu cao, vu cao, su co
vi cua » vai cua, di cua
cua te » cua tu
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 can) OR (su van))) OR (su cao)) ky nang x hoi. hieu qua cam xuc van hanh vi cua te~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((su can) OR (su van))) or (su cao)) ky nang x hoi. hieu qua cam xuc van hanh vi cua te~".
• Adding a wildcard symbol may retrieve word variants: ((((su can) OR (su van))) or (su cao)) ky nang x hoi. hieu qua cam xuc van hanh vi cua te*.