Perhaps you should try some spelling variations:
"thu sach ngang ve giai doan hong minh" » "thu sach nang ve giai doan hong minh", "thu sach ngan ve giai doan hong minh", "thu sach ngon ve giai doan hong minh", "thu sach ngang ve giai doan huong minh", "thu sach ngang ve giai doan hung minh", "thu sach ngang ve giai doan phuong minh", "thu sach ngang ve giai doan hoang minh", "thu sach ngang ve giai doan thong minh", "thu sach ngang ve giai doan khong minh", "tu sach ngang ve giai doan hong minh", "thuat sach ngang ve giai doan hong minh", "thuoc sach ngang ve giai doan hong minh", "thu sach ngang _ giai doan hong minh", "thu sach dang ve giai doan hong minh", "thu sach ngang va giai doan hong minh", "thu sach ngang ve giao doan hong minh", "thu sach ngang de giai doan hong minh"
"su sach ha ve giai cong trinh tin" » "su sach ha ve gia cong trinh tin", "su sach ha ve giao cong trinh tin", "su sach ha ve giai phong trinh tin", "su sach ha ve giai cong trinh kinh", "su sach ha ve giai cong trinh toan", "su sach ha ve giai cong trinh tu", "su sach ha va giai cong trinh tin", "su sach ha de giai cong trinh tin", "so sach ha ve giai cong trinh tin", "vu sach ha ve giai cong trinh tin", "su sach nha ve giai cong trinh tin", "su sach han ve giai cong trinh tin", "su sach xa ve giai cong trinh tin", "su sach pha ve giai cong trinh tin", "su sach hua ve giai cong trinh tin", "su sach ca ve giai cong trinh 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 ngang ve giai doan hong minh") or ("su sach ha ve giai cong trinh tin"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("thu sach ngang ve giai doan hong minh") OR ("su sach ha ve giai cong trinh tin")).
• Removing quotes may allow a broader search: (( thu sach ngang ve giai doan hong minh ) or ( su sach ha ve giai cong trinh tin )).
• Adding a wildcard symbol may retrieve word variants: (("thu sach ngang ve giai doan hong minh") or ("su sach ha ve giai cong trinh tin"))*.