Perhaps you should try some spelling variations:
cua triet » cua viet, su triet
va triet » va thiet, va trien, ve triet
hanh dai » hanh tai, hanh dao, vanh dai
hieu van » hieu va, thien van, lieu va
cam luc » cam xuc, cau luc
va hanh » van hanh, va thanh, va danh
tu sach » thu sach, su sach, te sach
van cam » van nam, van lam, van cau
y nang » ky nang, ly nang, may nang
luc va » duc va, tuc va, loc va
v nang » va nang, vu nang, van nang

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 sach ((y nang) OR (v nang)) xa hoi. hieu van cam luc va hanh dai ((cua triet) OR (va triet))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ((y nang) or (v nang)) xa hoi. hieu van cam luc va hanh dai ((cua triet) OR (va triet))~".
• Adding a wildcard symbol may retrieve word variants: tu sach ((y nang) or (v nang)) xa hoi. hieu van cam luc va hanh dai ((cua triet) OR (va triet))*.