Perhaps you should try some spelling variations:
hieu nghe » lieu nghe, hiem ngheo, nhiem nghe
cua triet » cua viet, su triet, va triet
nghe nam » nghe lam, nghiep nam, nghe nano
van danh » van doanh, van anh, van hanh
su sach » so sach, vu sach
sach ty » sach y, sach tu, sach thu
ty nang » ky nang, ty xang, ty hang
nang ma » tang ma, sang ma, nang cao
sai cua » dai cua, hai cua, lai cua
ma hoi » mai hoi, xa hoi, ma hoa
va dan » ca dan, va dao, va dau

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

• Performing a fuzzy search may retrieve terms with similar spellings: su sach ty nang ma hoi. hieu nghe nam thu ((van danh) or (va dan)) sai cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ty nang ma hoi. hieu nghe nam thu ((van danh) OR (va dan)) sai cua triet.
• Adding a wildcard symbol may retrieve word variants: su sach ty nang ma hoi. hieu nghe nam thu ((van danh) or (va dan)) sai cua triet*.