Perhaps you should try some spelling variations:
va triet » va thiet, va trien, ve triet
danh vi » hanh vi, dinh vi, danh di
toc sac » toc sach, toc san, hoc sach
nang xa » nang x, lang xa, nang ma
hieu va » lieu va, hieu qua
va cam » va cham, va cac, va cao
luc va » duc va, tuc va
sac ky » cac ky, sai ky
loc va » hoc va
cua te » cua tu

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: toc sac ky nang xa hoi. hieu va cam ((luc va) OR (loc va)) danh vi ((cua te) OR (va triet))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "toc sac ky nang xa hoi. hieu va cam ((luc va) OR (loc va)) danh vi ((cua te) or (va triet))~".
• Adding a wildcard symbol may retrieve word variants: toc sac ky nang xa hoi. hieu va cam ((luc va) OR (loc va)) danh vi ((cua te) or (va triet))*.