Perhaps you should try some spelling variations:
thuong ban » thuong han, thuong lan, tuong ban
doi chieu » doc hieu, mot chieu, ho chieu
cong tuan » cong tan, cong luan, cong thanh
tong luan » tang luan, dung luan, hang luan
ban phan » ban phap, van phan, ban than
phan dau » phan tu, hang dau
doi chi » doi khi

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 (doi chi)) sach - thanh ((cong tuan) or (tong luan)) hang thuong ban phan dau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((doi chieu) OR (doi chi)) sach - thanh ((cong tuan) OR (tong luan)) hang thuong ban phan dau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((doi chieu) OR (doi chi)) sach - thanh ((cong tuan) or (tong luan)) hang thuong ban phan dau".
• Adding a wildcard symbol may retrieve word variants: ((doi chieu) OR (doi chi)) sach - thanh ((cong tuan) or (tong luan)) hang thuong ban phan dau*.