Perhaps you should try some spelling variations:
thuong cong » thong cong, thuong con, thuong dong
thanh trung » thanh tung
cua thuong » cua truong, cua phuong, ca thuong
tieu sach » chieu sach, te sach, viet sach
dien sach » dien anh
trung cua » truong cua, trung tuan, trung cap
san hanh » san thanh, van hanh, dan hanh
ban hanh » ban 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) or (dien sach)) - thanh trung cua thuong cong ((san hanh) OR (ban hanh)) cac~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((tieu sach) OR (dien sach)) - thanh trung cua thuong cong ((san hanh) OR (ban hanh)) cac*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((tieu sach) or (dien sach)) - thanh trung cua thuong cong ((san hanh) OR (ban hanh)) cac*".