Perhaps you should try some spelling variations:
nganh thuong » anh thuong, doanh thuong, nang thuong
chuc nganh » chuc nang, hoc nganh, cac nganh
thuong hoc » truong hoc, tuong hoc, thuong ho
dong chuc » cong chuc, don chuc, dong cuc
sach hoi » sach doi, sach moi, cach thoi
sach bai » sach dao, cac bai, sach xa
cuu dong » cuu cong, cuu tong, cuu long
van nhan » van phan, van thanh, danh nhan
nhan tao » nhan tai, nhan dan
hoi van » hoi va, hoi dan, hai van
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 bai)) tap, nghien cuu dong chuc nganh thuong hoc ma hoi van nhan tao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((sach hoi) OR (sach bai)) tap, nghien cuu dong chuc nganh thuong hoc ma hoi van nhan tao.
• Adding a wildcard symbol may retrieve word variants: tu ((sach hoi) or (sach bai)) tap, nghien cuu dong chuc nganh thuong hoc ma hoi van nhan tao*.