Perhaps you should try some spelling variations:
sach nganh » sach ngan, sach tranh, cac nganh
nganh xay » nganh mac, nganh y, nganh ma
xay thuat » ky thuat, my thuat, va thuat
nganh co » nganh cong, nganh hoa, nganh y
co thuat » co thua, hoc thuat, cac thuat
so sach » so sanh, hoc sach
bo sach » hoc sach
co sach » cuon sach, hoc sach
toan » tran

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( so sach nganh xay thuat toan khoa ) or ( ((bo sach) or (co sach)) nganh co thuat toan khoa ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( so sach nganh xay thuat toan khoa ) OR ( ((bo sach) OR (co sach)) nganh co thuat toan khoa )).
• Adding a wildcard symbol may retrieve word variants: (( so sach nganh xay thuat toan khoa ) or ( ((bo sach) or (co sach)) nganh co thuat toan khoa ))*.