Perhaps you should try some spelling variations:
so sach » so sanh, bo sach, co sach
lai cua » dai cua, hai cua, lai chau
va danh » va dinh, va dan, dia danh
va hanh » van hanh, va thanh, ban hanh
hieu va » lieu va, hieu qua
cua tre » cua te, cuu tre, cua triet
lang xa » dang xay, lang van
lang ha » long ha
va cam » va cham, va cac, va cao

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

• Performing a fuzzy search may retrieve terms with similar spellings: so sach y ((lang xa) or (lang ha)) hoi. hieu va cam xuc ((va hanh) or (va danh)) lai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sach y ((lang xa) OR (lang ha)) hoi. hieu va cam xuc ((va hanh) OR (va danh)) lai cua tre.
• Adding a wildcard symbol may retrieve word variants: so sach y ((lang xa) or (lang ha)) hoi. hieu va cam xuc ((va hanh) or (va danh)) lai cua tre*.