Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
chat cua » nhat cua, chat va, chat huu
van hanh » van thanh, ban hanh, van anh
cau luc » cau truc, cau phuc
va hanh » va thanh, va danh, ban hanh
vu sach » vu bach, su sach, vu khach
hieu va » lieu va, hieu qua
y nang » ky nang, ly nang, v nang
ma hoi » mai hoi, ma hoa, me hoi
va cau » van cau, va cac, va dau

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

• Performing a fuzzy search may retrieve terms with similar spellings: vu sach y nang ((ma hoi) or (xa hoi)). hieu va cau luc ((va hanh) OR (van hanh)) chat cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu sach y nang ((ma hoi) OR (xa hoi)). hieu va cau luc ((va hanh) OR (van hanh)) chat cua triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "vu sach y nang ((ma hoi) or (xa hoi)). hieu va cau luc ((va hanh) OR (van hanh)) chat cua triet".
• Adding a wildcard symbol may retrieve word variants: vu sach y nang ((ma hoi) or (xa hoi)). hieu va cau luc ((va hanh) OR (van hanh)) chat cua triet*.