Perhaps you should try some spelling variations:
thanh thang » nhanh thang, thanh thanh, thanh hang
nhung dong » nhung cong, nhung dung, nhung bong
thanh phan » thanh pho, thanh san, thanh toan
hieu sach » chieu sach, hieu cach, dien sach
cong tuan » cong tan, cong luan, cong thanh
nhung don » nhung van, nhung bo
doc hieu » toc thieu, hoc thieu, hoc hien

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

• Performing a fuzzy search may retrieve terms with similar spellings: doc hieu sach - thanh cong tuan ((nhung dong) OR (nhung don)) ((thanh thang) or (thanh phan)) cap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doc hieu sach - thanh cong tuan ((nhung dong) OR (nhung don)) ((thanh thang) OR (thanh phan)) cap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doc hieu sach - thanh cong tuan ((nhung dong) OR (nhung don)) ((thanh thang) or (thanh phan)) cap".
• Adding a wildcard symbol may retrieve word variants: doc hieu sach - thanh cong tuan ((nhung dong) OR (nhung don)) ((thanh thang) or (thanh phan)) cap*.