Perhaps you should try some spelling variations:
hieu nghe » lieu nghe, hiem ngheo, nhiem nghe
cua triet » cua viet, su triet, va triet
thu sach » thuat sach, thuoc sach, thu hoach
nghe nam » nghe lam, nghiep nam, nghe nano
nam thuc » nam thuoc, am thuc, nam thu
danh dai » danh dau, danh di, danh sai
tu sach » su sach, te sach, tu cach
thuc xa » thuc xay, tuc xa, thuc va
xa danh » va danh, dia danh, nam danh
y nang » ky nang, ly nang, may nang
v nang » va nang, vu nang, van nang

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((tu sach) OR (thu sach)) ((y nang) or (v nang)) x ho. hieu nghe nam thuc xa danh dai cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (thu sach)) ((y nang) OR (v nang)) x ho. hieu nghe nam thuc xa danh dai cua triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu sach) OR (thu sach)) ((y nang) or (v nang)) x ho. hieu nghe nam thuc xa danh dai cua triet".
• Adding a wildcard symbol may retrieve word variants: ((tu sach) OR (thu sach)) ((y nang) or (v nang)) x ho. hieu nghe nam thuc xa danh dai cua triet*.