Perhaps you should try some spelling variations:
chieu ke » hieu ky, hieu ve, hieu kem
chau phu » chau phi, chau au, chau tho
ve triet » va trien, su triet
vu sach » vu bach, su sach, vu khach
hieu ke » hieu kem, hieu ky, hieu ve
va hanh » van hanh, va thanh, va danh
y nang » ly nang, v nang, may nang
phu va » phuc va, phu la, phu da
vi ve » va ve, gi ve, ve ve

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) OR (ky nang)) xa hoi. ((hieu ke) or (chieu ke)) chau phu va hanh vi ve triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu sach ((y nang) OR (ky nang)) xa hoi. ((hieu ke) OR (chieu ke)) chau phu va hanh vi ve triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "vu sach ((y nang) OR (ky nang)) xa hoi. ((hieu ke) or (chieu ke)) chau phu va hanh vi ve triet".
• Adding a wildcard symbol may retrieve word variants: vu sach ((y nang) OR (ky nang)) xa hoi. ((hieu ke) or (chieu ke)) chau phu va hanh vi ve triet*.