Perhaps you should try some spelling variations:
danh dien » dinh dien, danh kien, danh lien
nhan thuc » nhan luc, dan thuc, toan thuc
hieu van » hieu va, thien van, lieu va
van nhan » van phan, van thanh, danh nhan
thuc day » thuc dan, thuc vat
thu xac » thau xay
nang xa » nang x, lang xa, nang ma
danh di » danh du, xanh di, danh gia
cua tre » cua te, cuu tre, cua triet
xac ky » cac ky, sac ky, bac ky

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

• Performing a fuzzy search may retrieve terms with similar spellings: thu xac ky nang xa hoi. hieu van nhan thuc day ((danh di) or (danh dien)) cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu xac ky nang xa hoi. hieu van nhan thuc day ((danh di) OR (danh dien)) cua tre.
• Adding a wildcard symbol may retrieve word variants: thu xac ky nang xa hoi. hieu van nhan thuc day ((danh di) or (danh dien)) cua tre*.