Perhaps you should try some spelling variations:
"so sach tham ve gia cong hoan minh" » "so sach nha ve gia cong hoan minh", "so sach tham ve gia cong hoa minh", "so sach tham ve gia dong hoa minh", "so sach tham ve gia cong san minh", "so sach tham ve gia cong hoang minh", "so sach tham ve gia cong doan minh", "so sach tham ve gia cong hoan linh", "so sach tham ve cua cong hoan minh", "so sach tham ve va cong hoan minh", "so sanh tham ve gia cong hoan minh", "bo sach tham ve gia cong hoan minh", "co sach tham ve gia cong hoan minh", "so sach tam ve gia cong hoan minh", "so sach thanh ve gia cong hoan minh", "so sach tham ve giao cong hoan minh", "so sach tham ve giai cong hoan minh", "so sach tham va gia cong hoan minh"
"te sach cha me gioi cau thong tin" » "te sach cha me gioi sau thong tin", "te sach cha me gioi cac thong tin", "te sach cha me gioi cau thang tin", "te sach nha me gioi cau thong tin", "te sach che me gioi cau thong tin", "te sach ha me gioi cau thong tin", "te sach cha me gioi chau thong tin", "te sach cha me gioi cam thong tin", "te sach cha me gioi can thong tin", "toc sach cha me gioi cau thong tin", "te sach cha me giai cau thong tin", "te sach cha ve gioi cau thong tin", "te sach cha me nguoi cau thong tin", "te sach cha me gioi cau thong tinh"

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: (("so sach tham ve gia cong hoan minh") or ("te sach cha me gioi cau thong tin"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("so sach tham ve gia cong hoan minh") OR ("te sach cha me gioi cau thong tin")).
• Removing quotes may allow a broader search: (( so sach tham ve gia cong hoan minh ) or ( te sach cha me gioi cau thong tin )).
• Adding a wildcard symbol may retrieve word variants: (("so sach tham ve gia cong hoan minh") or ("te sach cha me gioi cau thong tin"))*.