Perhaps you should try some spelling variations:
sanh trong » sinh trong, anh trong, hanh trong
thuoc sach » hoc sach, nuoc sach, thuat sach
trong thuc » trong thu, thuong thuc, trong thuat
thuc doanh » thuc hanh, thuc dan, chuc danh
doanh khoa » toan khoa
tai thuoc » tri thuoc, bai thuoc, tac thuoc
hoc thong » hoc thuong, hoc trong, hoc hong
sach hoa » sach ha, sach hoi, bach hoa
khoa hoc » hoa hoc
bac tai » bac dai, ban tai, cac tai
so sanh » do sanh
xu bac » xa bac

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (( xu bac tai thuoc sach hoa he thong ) or ( so sanh trong thuc doanh khoa hoc thong ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( xu bac tai thuoc sach hoa he thong ) OR ( so sanh trong thuc doanh khoa hoc thong )).
• Adding a wildcard symbol may retrieve word variants: (( xu bac tai thuoc sach hoa he thong ) or ( so sanh trong thuc doanh khoa hoc thong ))*.