Perhaps you should try some spelling variations:
cua triet » su triet, va triet
hieu van » hieu va, thien van, lieu va
hanh tai » thanh tai, hang tai, han tai
cua viet » ca viet, hoa viet, cua vat
tu sach » thu sach, su sach, te sach
nang xa » nang x, lang xa, nang ma
van dau » van dao, phan dau
dau xua » dau cua, dao xuan, dau luan
va hanh » van hanh, va thanh, va danh
y nang » ky nang, ly nang, v nang
xua va » xuat va, vua va, sua va

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 xa hoi. hieu van dau xua va hanh tai ((cua triet) OR (cua viet))~.
• Adding a wildcard symbol may retrieve word variants: tu sach y nang xa hoi. hieu van dau xua va hanh tai ((cua triet) or (cua viet))*.