Perhaps you should try some spelling variations:
nghe nano » nghe dan, nghe san, nghe nhan
nghe nam » nghe lam, nghiep nam, nghe nhan
thuc day » thuc dan, thuc vat
day danh » day manh, dai danh, dao danh
danh vai » danh sai, danh va, doanh van
cua viet » ca viet, hoa viet, cua vat
tu sach » thu sach, su sach, te sach
sach ky » sac ky, sach y, sach ty
vai cua » dai cua, hai cua, lai cua
ve nam » he nam, va nam, le nam
x hoi » xa hoi, o hoi, x ho

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 ky nang x hoi. hieu ((ve nam) or (((nghe nam) OR (nghe nano)))) thuc day danh vai cua viet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ky nang x hoi. hieu ((ve nam) OR (((nghe nam) OR (nghe nano)))) thuc day danh vai cua viet*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ky nang x hoi. hieu ((ve nam) or (((nghe nam) OR (nghe nano)))) thuc day danh vai cua viet*".