Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
phap luu » phap lua, phap luat, phap luan
van hanh » van thanh, van anh, van minh
ban hanh » ban hang
ky lang » ky nang, ky dang, ky tang
lang xa » lang ha, dang xay, lang van
hieu va » lieu va, hieu qua
va phap » va phat, ban phap

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 cac ky lang xa hoi. hieu va phap luu ((((van hanh) OR (van ban))) OR (ban hanh)) dai cua triet~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu cac ky lang xa hoi. hieu va phap luu ((((van hanh) OR (van ban))) or (ban hanh)) dai cua triet~".
• Adding a wildcard symbol may retrieve word variants: tu cac ky lang xa hoi. hieu va phap luu ((((van hanh) OR (van ban))) or (ban hanh)) dai cua triet*.