Perhaps you should try some spelling variations:
thien van » thi van
cua triet » cua viet, va triet
cau thuc » cau truc, cuu thuc, can thuc
vat hanh » vat thanh, van hanh, va hanh
hanh vai » hanh vi, hanh va, hanh tai
su triet » su viet, su tien, ve triet
nang xa » nang x, lang xa, nang ma
van cau » van dau, van hau, van chat
su cac » tu cac, su cao, eu cac
su can » su van, su cao, tu can

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 cac) OR (su can)) ky nang xa hoi. thien van cau thuc vat hanh vai ((cua triet) OR (su triet))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((su cac) or (su can)) ky nang xa hoi. thien van cau thuc vat hanh vai ((cua triet) OR (su triet))~".
• Adding a wildcard symbol may retrieve word variants: ((su cac) or (su can)) ky nang xa hoi. thien van cau thuc vat hanh vai ((cua triet) OR (su triet))*.