Perhaps you should try some spelling variations:
nghe nam » nghe lam, nghiep nam, nghe nano
thuc dan » thuc hanh, hoc dan, thuc vat
cua viet » ca viet, hoa viet, cua vat
su sach » so sach, vu sach
sach ky » sac ky, sach y, sach ty
nang xa » nang x, lang xa, nang ma
hanh va » hang va
he nam » ha nam

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 ky nang xa hoi. hieu ((he nam) OR (nghe nam)) thuc dan ((hanh va) or (hanh vi)) cua viet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ky nang xa hoi. hieu ((he nam) OR (nghe nam)) thuc dan ((hanh va) OR (hanh vi)) cua viet*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ky nang xa hoi. hieu ((he nam) OR (nghe nam)) thuc dan ((hanh va) or (hanh vi)) cua viet*".