Perhaps you should try some spelling variations:
phuong cong » phuong dong, phung cong, phuong hoang
phong cong » phong chong, thong cong, chong 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
hang luan » tang luan, dung luan
ban hang » ngan hang

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 ((phuong cong) or (phong cong)) ban hang luan~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo tieu sach - hanh hang doan ((phuong cong) OR (phong cong)) ban hang luan.
• Adding a wildcard symbol may retrieve word variants: theo tieu sach - hanh hang doan ((phuong cong) or (phong cong)) ban hang luan*.