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

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