Perhaps you should try some spelling variations:
thanh phan » thanh pho, thanh san, thanh toan
doi chieu » doc hieu, doi chi, mot chieu
phan van » pham van, thanh van, luan van
van phan » van phong, van thanh, luan phan
phan dan » phan dang, phan dau, nhan dan
van than » van thanh, van thang, van tuan
than van » thanh van, tran van, tan van
dan van » dang van, doan van, dao van

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((doi chieu) or (toc thieu)) sach - thanh phan van phan dan van than van~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((doi chieu) OR (toc thieu)) sach - thanh phan van phan dan van than van*.