Perhaps you should try some spelling variations:
nghe nano » nghe dan, nghe san, nghe nhan
nang mai » nang ma, nang tai, lang mai
nghe nam » nghe lam, nghiep nam, nghe nhan
nam danh » nam dinh, nam dan
xa danh » va danh, dia danh, van danh
cua tre » cua te, cuu tre, cua triet
mai hoi » mai khoi, dai hoi, lai hoi
sac ky » cac ky, sai ky
tu sac » tu sach, tu cac, tu san

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sac ky nang mai hoi. hieu ((nghe nam) or (nghe nano)) thu ((xa danh) or (nam danh)) dai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sac ky nang mai hoi. hieu ((nghe nam) OR (nghe nano)) thu ((xa danh) OR (nam danh)) dai cua tre.
• Adding a wildcard symbol may retrieve word variants: tu sac ky nang mai hoi. hieu ((nghe nam) or (nghe nano)) thu ((xa danh) or (nam danh)) dai cua tre*.