Perhaps you should try some spelling variations:
"te sach cha ma nguoi cong thong minh" » "te sach cha ma nguoi muong thong minh", "te sach cha ma nguoi thong thong minh", "te sach cha ma nguoi nung thong minh", "te sach cha ma nguoi cong thuong minh", "te sach cha ma nguoi cong trong minh", "te sach cha ma nguoi dong thong minh", "te sach cha ma nguoi cong hoang minh", "te sach nha ma nguoi cong thong minh", "te sach che ma nguoi cong thong minh", "te sach ha ma nguoi cong thong minh", "te sach cha ca nguoi cong thong minh", "te sach cha va nguoi cong thong minh", "te sach cha cua nguoi cong thong minh", "toc sach cha ma nguoi cong thong minh", "te sach cha me nguoi cong thong minh", "te sach chua may nguoi cong thong minh"
"tu cach phan mem gioi thong thong tin" » "tu cach phan mem gioi trong thong tin", "tu cach phan mem nguoi thong thong tin", "tu cach phan mem giao thong thong tin", "tu cach pha mem gioi thong thong tin", "tu mach phan mem gioi thong thong tin", "tu cac phan mem gioi thong thong tin", "tu cach phan kem giai thong thong tin", "tu cach phan moi gioi thong thong tin", "tu cach phan tam gioi thong thong tin"

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("tu cach phan mem gioi thong thong tin") or ("te sach cha ma nguoi cong thong minh"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("tu cach phan mem gioi thong thong tin") OR ("te sach cha ma nguoi cong thong minh")).
• Removing quotes may allow a broader search: (( tu cach phan mem gioi thong thong tin ) or ( te sach cha ma nguoi cong thong minh )).
• Adding a wildcard symbol may retrieve word variants: (("tu cach phan mem gioi thong thong tin") or ("te sach cha ma nguoi cong thong minh"))*.