Perhaps you should try some spelling variations:
phung cong » nhung cong, phong cong, nhung chong
chong cong » cong cong, thong cong, cuong cong
tieu sach » chieu sach, dien sach, te sach
hanh hang » thanh hang, hang hang, hanh han
hang doan » hang doanh, hanh doanh, quang doan
ban than » ban thanh, van thanh, ban hang
than ban » thanh ban, toan ban, than man

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo tieu sach - hanh hang doan ((phung cong) or (chong cong)) ban than ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo tieu sach - hanh hang doan ((phung cong) OR (chong cong)) ban than ban.
• Adding a wildcard symbol may retrieve word variants: theo tieu sach - hanh hang doan ((phung cong) or (chong cong)) ban than ban*.