Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
thu cach » thuc cach, thu canh, tu cach
van hanh » van thanh, ban hanh, van anh
cach tu » cach thuc
tu nang » tru nang, tu nong, tu nano
hieu vu » hieu va, hieu su, dieu vu
hieu ve » hieu va, hieu van
va hanh » va thanh, va danh, ban hanh
le cua » ly cua
x hoi » xa hoi, o hoi, x ho

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: thu cach tu nang x hoi. ((hieu vu) or (hieu ve)) pham duc ((va hanh) OR (van hanh)) le cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu cach tu nang x hoi. ((hieu vu) OR (hieu ve)) pham duc ((va hanh) OR (van hanh)) le cua triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu cach tu nang x hoi. ((hieu vu) or (hieu ve)) pham duc ((va hanh) OR (van hanh)) le cua triet".
• Adding a wildcard symbol may retrieve word variants: thu cach tu nang x hoi. ((hieu vu) or (hieu ve)) pham duc ((va hanh) OR (van hanh)) le cua triet*.