Perhaps you should try some spelling variations:
cuon sach » duong sach, cuoc cach, nuoc sach
van dinh » van minh, van dich, va dinh
hang van » hoang van, hang va, dang van
co sach » bo sach, hoc sach
va hanh » van hanh, va thanh, va danh
cao xuc » cam xuc, cao duc, cao suc
hieu va » lieu va, hieu qua
van hoi » van hoa, van hoc, van hoe
ty hang » ly hang, ty xang, thi hang
su viet » so viet
va cao » va cac, va co, va dao
vi su » va su, ve su, ki su

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((co sach) OR (cuon sach)) ty hang van hoi. hieu va cao xuc ((va hanh) or (van dinh)) vi su viet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((co sach) OR (cuon sach)) ty hang van hoi. hieu va cao xuc ((va hanh) OR (van dinh)) vi su viet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((co sach) OR (cuon sach)) ty hang van hoi. hieu va cao xuc ((va hanh) or (van dinh)) vi su viet".
• Adding a wildcard symbol may retrieve word variants: ((co sach) OR (cuon sach)) ty hang van hoi. hieu va cao xuc ((va hanh) or (van dinh)) vi su viet*.