Perhaps you should try some spelling variations:
"so sach dao me nguoi cham thang tien" » "so sach dao me nguoi thai thang tien", "so sach dao me nguoi pham thang tien", "so sach dao me nguoi pham thanh tien", "so sach dao me nguoi nam thang tien", "so sach dao me nguoi cham toan tien", "so sach dao me nguoi cham thanh vien", "so sach dao me nguoi cham bang tien", "so lanh dao me nguoi cham thang tien", "so sach dao ma nguoi cham thang tien", "so sach dao le nguoi cham thang tien", "so sach dao ke nguoi cham thang tien", "so sanh dao me nguoi cham thang tien", "bo sach dao me nguoi cham thang tien", "co sach dao me nguoi cham thang tien", "so sach dam me nguoi cham thang tien", "so sach dao ve nguoi cham thang tien"
"su sach che ve gioi bo thong tin" » "su sach thue ve gioi bo thong tin", "su sach nha ve gioi bo thong tin", "su sach cap ve gioi bo thong tin", "su sach che ve gioi pho thong tin", "su sach che ve gioi bo truong tin", "su sach che ve gioi he thong tin", "vu sach che ve gioi bo thong tin", "su sach che ve giai bo thong tin", "su sach che vien gioi bo thong tin", "su sach che van gioi bo thong tin", "su sach che ve gioi bon thong tin", "su sach che ve gioi co thong tin", "su sach che ve gioi hoa thong tin", "su sach chep ve gioi bo thong tin", "su sach che va gioi bo thong tin", "su sach che vi gioi bo 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 ve gioi bo thong tin") or ("so sach dao me nguoi cham thang tien"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("su sach che ve gioi bo thong tin") OR ("so sach dao me nguoi cham thang tien")).
• Removing quotes may allow a broader search: (( su sach che ve gioi bo thong tin ) or ( so sach dao me nguoi cham thang tien )).
• Adding a wildcard symbol may retrieve word variants: (("su sach che ve gioi bo thong tin") or ("so sach dao me nguoi cham thang tien"))*.