Perhaps you should try some spelling variations:
so sach » so sanh, bo sach, co sach
sach ky » sac ky, sach y, sach ty
ky lang » ky nang, ky dang, ky tang
lang xa » lang ha, dang xay, lang van
qua cac » cua cac
cac xuc » cam xuc, cac nuoc, chat xuc
va hanh » van hanh, va thanh, ban hanh
va danh » va dinh, va dan, dia danh
lai cua » hai cua, lai chau, thai cua

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 ky lang xa hoi. hieu qua cac xuc ((va hanh) or (va danh)) ((lai cua) or (dai cua)) triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sach ky lang xa hoi. hieu qua cac xuc ((va hanh) OR (va danh)) ((lai cua) OR (dai cua)) triet.
• Adding a wildcard symbol may retrieve word variants: so sach ky lang xa hoi. hieu qua cac xuc ((va hanh) or (va danh)) ((lai cua) or (dai cua)) triet*.