Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
van hanh » van thanh, ban hanh, van anh
su sach » so sach, vu sach
tu nang » tru nang, tu nong, tu nano
hieu ve » hieu va, hieu van
va hanh » va thanh, va danh, ban hanh
su cac » tu cac, su cao, su can
ve cam » ve cham, ve cac, va cam
vi cua » vai cua, di 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: ((su sach) or (su cac)) tu nang x hoi. hieu ve cam xuc ((va hanh) OR (van hanh)) vi cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((su sach) OR (su cac)) tu nang x hoi. hieu ve cam xuc ((va hanh) OR (van hanh)) vi cua triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((su sach) or (su cac)) tu nang x hoi. hieu ve cam xuc ((va hanh) OR (van hanh)) vi cua triet".
• Adding a wildcard symbol may retrieve word variants: ((su sach) or (su cac)) tu nang x hoi. hieu ve cam xuc ((va hanh) OR (van hanh)) vi cua triet*.