Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
van dinh » van minh, van dich, va dinh
tu sach » thu sach, su sach, te sach
nang xa » nang x, lang xa, nang ma
van cho » van chi, van chat, van khoa
san cho » sang cho, san chi, san co
va tinh » may tinh
y nang » ky nang, ly nang, v nang
va cua » va chua, via cua, ca cua

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