Perhaps you should try some spelling variations:
"su sach cha ke nguoi nhat ban tieng" » "su sach cha ke nguoi thai ban tieng", "su sach cha ke nguoi cham ban tieng", "su sach cha ke nguon nhan ban tieng", "su sach cha ke nguoi nhat van tien", "su sach cha ke nguoi nhat ban tinh", "su sach cha ke nguoi nhat va tieng", "su sach nha ke nguoi nhat ban tieng", "su sach ha ke nguoi nhat ban tieng", "su sach cua ke nguoi nhat ban tieng", "su sach cha le nguoi nhat ban tieng", "su sach cha ky nguoi nhat ban tieng", "su sach cha me nguoi nhat ban tieng", "so sach cha ke nguoi nhat ban tieng", "vu sach cha ke nguoi nhat ban tieng", "su sach ca ke nguoi nhat ban tieng", "su sach kha ke nguoi nhat ban tieng"
"su sach che my gioi bon thong tin" » "su sach che my gioi bon thuong tin", "su sach che my gioi bo thong tin", "su sach che my gioi ban thong tin", "su sach thue my gioi bon thong tin", "su sach nha my gioi bon thong tin", "su sach cap my gioi bon thong tin", "su sach che my gioi hon thong tin", "su sach che my gioi binh thong tin", "su sach che my gioi dong thong tin", "so sach che my gioi bon thong tin", "vu sach che my gioi bon thong tin", "su sach che moi gioi bon 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: (("su sach che my gioi bon thong tin") or ("su sach cha ke nguoi nhat ban tieng"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("su sach che my gioi bon thong tin") OR ("su sach cha ke nguoi nhat ban tieng")).
• Removing quotes may allow a broader search: (( su sach che my gioi bon thong tin ) or ( su sach cha ke nguoi nhat ban tieng )).
• Adding a wildcard symbol may retrieve word variants: (("su sach che my gioi bon thong tin") or ("su sach cha ke nguoi nhat ban tieng"))*.