Perhaps you should try some spelling variations:
nhan thuc » nhan luc, dan thuc, toan thuc
thuc day » thuc dan, thuc vat
danh sai » dung sai, danh bat, danh dau
danh dai » danh dau, danh di, vanh dai
thu sai » thu hai, thu tai, thu san
va nhan » van nhan, ca nhan, va phan
lang xa » lang ha, dang xay, lang van
nang xa » nang x, nang ma, mang xa
cua tre » cua te, cuu tre, cua triet
sai ky » sac 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 sai ky ((nang xa) OR (lang xa)) hoi. lieu va nhan thuc day ((danh dai) or (danh sai)) cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sai ky ((nang xa) OR (lang xa)) hoi. lieu va nhan thuc day ((danh dai) OR (danh sai)) cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu sai ky ((nang xa) OR (lang xa)) hoi. lieu va nhan thuc day ((danh dai) or (danh sai)) cua tre".
• Adding a wildcard symbol may retrieve word variants: thu sai ky ((nang xa) OR (lang xa)) hoi. lieu va nhan thuc day ((danh dai) or (danh sai)) cua tre*.