Perhaps you should try some spelling variations:
nganh khong » nganh cong, nhanh chong, nganh nong
luc nganh » luc ngan, chuc nganh, luat nganh
khong hoc » khung hoc, thong hoc, khong thuoc
sach hoi » sach doi, cach thoi, hoach hoi
sach moi » sach doi, bach mai, sach bai
cuu tong » cuu cong, cuu tinh, huu tung
tong luc » dong luc, tong cuc, truong luc
nhan tao » nhan tai, nhan dan
va nhan » van nhan, ca nhan, va phan
ma hoi » mai hoi, xa hoi, ma hoa

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu ((sach hoi) OR (sach moi)) tap, nghien cuu tong luc nganh khong hoc ma hoi va nhan tao~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu ((sach hoi) OR (sach moi)) tap, nghien cuu tong luc nganh khong hoc ma hoi va nhan tao".
• Adding a wildcard symbol may retrieve word variants: tu ((sach hoi) OR (sach moi)) tap, nghien cuu tong luc nganh khong hoc ma hoi va nhan tao*.