Perhaps you should try some spelling variations:
"so sach cha ve gian cong trong ca" » "so sach cha ve gian cong thuong ca", "so sach cha ve gian duong trong ca", "so sach cha ve gian cong trinh ca", "so sach cha ve gia cong trong ca", "so sach cha ve giao cong trong ca", "so sach cha ve gian song trong ca", "so sach nha ve gian cong trong ca", "so sach che ve gian cong trong ca", "so sach ha ve gian cong trong ca", "so sach cha ve gian cong trong cac", "so sach cha ve gian cong trong nha", "so sanh cha ve gian cong trong ca", "bo sach cha ve gian cong trong ca", "co sach cha ve gian cong trong ca", "so sach cha va gian cong trong ca", "so sach cha ve giai cong trong ca", "so sach ca ve gian cong trong ca", "so sach pha ve gian cong trong ca"
"tu sach cha me giai cao thong tin" » "tu sach cha me giai cao thuong tin", "tu sach cha me giai tao thong tin", "tu sach cha me giai cao phong tin", "tu sach nha me giai cao thong tin", "tu sach che me giai cao thong tin", "tu sach ha me giai cao thong tin", "tu sach cha me giai ca thong tin", "tu sach cha me giai cac thong tin", "tu sach cha me giai bai thong tin", "thu sach cha me giai cao thong tin", "su sach cha me giai cao thong tin", "te sach cha me giai cao thong tin", "tu sach cha de giai cao thong tin", "tu sach cha ve giai cao thong tin", "tu sach cha ke giai cao thong tin"

Try widening your search to All Fields.

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("tu sach cha me giai cao thong tin") or ("so sach cha ve gian cong trong ca"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("tu sach cha me giai cao thong tin") OR ("so sach cha ve gian cong trong ca")).
• Removing quotes may allow a broader search: (( tu sach cha me giai cao thong tin ) or ( so sach cha ve gian cong trong ca )).
• Adding a wildcard symbol may retrieve word variants: (("tu sach cha me giai cao thong tin") or ("so sach cha ve gian cong trong ca"))*.