Perhaps you should try some spelling variations:
"te sach xa van giao tai phuong tien" » "te sach xa van giao tai phuong trinh", "te sach xa van giao thi phuong tien", "te sach xa van giao cac phuong tien", "te sach xa van giao va phuong tien", "te sach xa nang giao tai phuong tien", "te sach xa toan giao tai phuong tien", "te sach xa dan gian tai phuong tien", "te sach xa van gia tai phuong tien", "te sach xa van gao tai phuong tien", "te sach xa van giai tai phuong tien", "toc sach xa van giao tai phuong tien", "te sach dao van giao tai phuong tien", "te sach nha van giao tai phuong tien", "te sach bai van giao tai phuong tien", "te sach va van giao tai phuong tien", "te sach ha van giao tai phuong tien", "te sach ma van giao tai phuong tien"
"thu sach cha me gioi bo thong tin" » "tu sach cha me gioi bo thong tin", "thuat sach cha me gioi bo thong tin", "thuoc sach cha me gioi bo thong tin", "thu sach nha me gioi bo thong tin", "thu sach che me gioi bo thong tin", "thu sach ha me gioi bo thong tin", "thu sach cha me gioi pho thong tin", "thu sach cha me gioi bo truong tin", "thu sach cha me gioi he thong tin", "thu sach cha me giai bo thong tin", "thu sach cha ve gioi bo thong tin", "thu sach cha me nguoi bo thong tin", "thu sach cha me gioi bon thong tin", "thu sach cha me gioi co thong tin", "thu sach cha me gioi hoa 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: (("thu sach cha me gioi bo thong tin") or ("te sach xa van giao tai phuong tien"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("thu sach cha me gioi bo thong tin") OR ("te sach xa van giao tai phuong tien")).
• Removing quotes may allow a broader search: (( thu sach cha me gioi bo thong tin ) or ( te sach xa van giao tai phuong tien )).
• Adding a wildcard symbol may retrieve word variants: (("thu sach cha me gioi bo thong tin") or ("te sach xa van giao tai phuong tien"))*.