Perhaps you should try some spelling variations:
nha thuoc » nha nuoc, nhan thuc, nha hoc
nhung don » nhung van, nhung bo
hieu nhi » thieu nhi, hieu chi, khieu nai
te sach » toc sach
nha toc » nha hoc, nha nuoc, thac toc
nhi cua » nghi cua, chi cua, khi cua
don oc » dong hoc
oc vi » hoc vi, doc vi

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sach ((nha toc) OR (nha thuoc)) hieu nhi cua ets : nhung don oc vi đai~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ((nha toc) OR (nha thuoc)) hieu nhi cua ets : nhung don oc vi đai".
• Adding a wildcard symbol may retrieve word variants: te sach ((nha toc) OR (nha thuoc)) hieu nhi cua ets : nhung don oc vi đai*.