Perhaps you should try some spelling variations:
nha thuoc » nha nuoc, nhan thuc, nha hoc
kien nghi » biet nghi, kien noi
nhung don » nhung van, nhung bo
kien chi » trien chi, khien cho, hieu chi
trung bo » truong bo, trung hoc, trung hoa
su sach » so sach, vu sach
doc vi » hoc vi, don vi, doc va

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 nha thuoc ((kien nghi) or (kien chi)) cua ets : ((trung bo) or (nhung don)) doc vi đai~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach nha thuoc ((kien nghi) OR (kien chi)) cua ets : ((trung bo) OR (nhung don)) doc vi đai.
• Adding a wildcard symbol may retrieve word variants: su sach nha thuoc ((kien nghi) or (kien chi)) cua ets : ((trung bo) or (nhung don)) doc vi đai*.