Perhaps you should try some spelling variations:
nganh khoa » nganh hoa, nganh khong, doanh khoa
sach doi » sach hoi, sach moi, sach dao
cuu cong » cua cong, thu cong, cac cong
co nganh » hoc nganh, cac nganh, moi nganh
khoa hoc » hoa hoc
nhan tao » nhan tai, nhan dan
su sach » so sach, vu sach
doi tap » doi tac, doi dap, doi tai
cong co » dong co, cong cu, cong so
hoc mai » hoc ma, hoc dai, hoc bai
khoi va » khi va, choi va, thoi va

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 doi tap, nghien cuu cong co nganh khoa hoc mai ((khoi va) OR (hoi va)) nhan tao~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach doi tap, nghien cuu cong co nganh khoa hoc mai ((khoi va) OR (hoi va)) nhan tao".
• Adding a wildcard symbol may retrieve word variants: su sach doi tap, nghien cuu cong co nganh khoa hoc mai ((khoi va) OR (hoi va)) nhan tao*.