Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
bien tinh » yen tinh, diep tinh, ban tinh
tranh cua » doanh cua, manh cua
hang cong » dang cong, hang nong, bang cong
cua hang » cua dang, cua nhung, cua cong
cong san » cong tac
bi tinh » vi tinh
pham ma » pham va, pham van, pham tai

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

• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu sach) OR (((bien tinh) OR (bi tinh)))) - canh tranh cua hang cong san pham ma~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((chieu sach) or (((bien tinh) OR (bi tinh)))) - canh tranh cua hang cong san pham ma~".
• Adding a wildcard symbol may retrieve word variants: ho ((chieu sach) or (((bien tinh) OR (bi tinh)))) - canh tranh cua hang cong san pham ma*.