Perhaps you should try some spelling variations:
thanh vi » hanh vi, thanh ve, nhanh vi
thanh va » thanh van, hanh va, thanh ha
qua cac » cua cac
cac duc » cac du, cao duc, cac dac
su can » su van, tu can, su han
su cao » cu cao, vu cao, su co
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 cao)) ky nang x hoi. hieu qua cac duc va ((thanh vi) OR (thanh va)) cua te~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((su can) OR (su cao)) ky nang x hoi. hieu qua cac duc va ((thanh vi) or (thanh va)) cua te~".
• Adding a wildcard symbol may retrieve word variants: ((su can) OR (su cao)) ky nang x hoi. hieu qua cac duc va ((thanh vi) or (thanh va)) cua te*.