Perhaps you should try some spelling variations:
"su sach tai thuc hanh khoa pham thuong" » "su sach tai thuc hanh khoa phan thuong", "su sach tai thuc hanh khoa pham hong", "su sach tai thuc hang khoa pham thuong", "su sach tai thuc hanh hoa pham thuong", "su sach tai thuc han khoa pham thuong", "su sach tai thuc hanh khoa kham thuong", "su sach tai thuc hanh khoa phau thuong", "su sach tai thuc hanh khoa cham thuong", "su sach tham thuc hanh khoa pham thuong", "su sach dao thuc hanh khoa pham thuong", "su sach xa thuc hanh khoa pham thuong", "su sach thai thuc hanh khoa pham thuong", "su sach tri thuc hanh khoa pham thuong", "su sach dai thuc hanh khoa pham thuong", "su sach tai thuc hdoanh khoa pham thuong", "su sach tai thuc hhang khoa pham thuong", "so sach tai thuc hanh khoa pham thuong", "vu sach tai thuc hanh khoa pham thuong"
"thu sach bai thuc anh khoa phan cong" » "thu sach bai thuc anh hoa phan cong", "thu sach bai thuc anh khoa than cong", "thu sach bai thuc anh khoa phau cong", "thu sach bai thuc anh khoa thanh cong", "tu sach bai thuc anh khoa phan cong", "thuat sach bai thuc anh khoa phan cong", "thuoc sach bai thuc anh khoa phan cong", "thu sach dao thuc anh khoa phan cong", "thu cac bai thuc anh khoa phan cong", "thu sach xa thuc anh khoa phan cong", "thu sach bai thuoc anh khoa phan cong", "thu sach bao thuc anh khoa phan cong", "thu sach dai thuc anh khoa phan cong", "thu sach bai thuy anh khoa phan cong", "thu sach bai thu anh khoa phan cong", "thu sach bai thuc thanh khoa phan cong", "thu sach bai thuc doanh khoa phan cong", "thu sach bai thuc hang khoa phan cong"

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 tai thuc hanh khoa pham thuong") or ("thu sach bai thuc anh khoa phan cong"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("su sach tai thuc hanh khoa pham thuong") OR ("thu sach bai thuc anh khoa phan cong")).
• Removing quotes may allow a broader search: (( su sach tai thuc hanh khoa pham thuong ) or ( thu sach bai thuc anh khoa phan cong )).
• Adding a wildcard symbol may retrieve word variants: (("su sach tai thuc hanh khoa pham thuong") or ("thu sach bai thuc anh khoa phan cong"))*.