Perhaps you should try some spelling variations:
lky nang » ly nang, ki nang, ke nang
chau tho » chat thom, cau thi, phu tho
ve triet » va trien, su triet
vu sach » vu bach, vu khach
su sach » so sach
va hanh » van hanh, va thanh, va danh
tho va » tho van, tao va, tho ca
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) OR (su sach)) ((ky nang) or (lky nang)) xa hoi. hieu ky chau tho va hanh vi ve triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((vu sach) OR (su sach)) ((ky nang) OR (lky nang)) xa hoi. hieu ky chau tho va hanh vi ve triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((vu sach) OR (su sach)) ((ky nang) or (lky nang)) xa hoi. hieu ky chau tho va hanh vi ve triet".
• Adding a wildcard symbol may retrieve word variants: ((vu sach) OR (su sach)) ((ky nang) or (lky nang)) xa hoi. hieu ky chau tho va hanh vi ve triet*.