Perhaps you should try some spelling variations:
cuon sach » duong sach, cuoc cach, nuoc sach
lieu van » hieu van, sieu van, lieu nano
co sach » bo sach, hoc sach
ky tang » ky nang, ky dang, kho tang
tang xa » trang xa, tang ma, lang xa
cam duc » cam xuc, cao duc, pham duc
va hanh » van hanh, va thanh, va danh
vi cua » vai cua, di cua
cua te » cua tu

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)) ky tang xa hoi. ((lieu van) or (lieu va)) cam duc va hanh vi cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((co sach) OR (cuon sach)) ky tang xa hoi. ((lieu van) OR (lieu va)) cam duc va hanh vi cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((co sach) OR (cuon sach)) ky tang xa hoi. ((lieu van) or (lieu va)) cam duc va hanh vi cua te".
• Adding a wildcard symbol may retrieve word variants: ((co sach) OR (cuon sach)) ky tang xa hoi. ((lieu van) or (lieu va)) cam duc va hanh vi cua te*.