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 moi, cach thoi, hoach hoi
sach doi » sach moi, sach dao, sach bai
cuu dong » cuu cong, cuu tong, cuu long
dong luc » nang luc
phan tao » nhan tao, phan tap, phan tan
va phan » van phan, va phat, va phap
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 doi)) tap, nghien cuu dong luc nganh khong hoc ma hoi va phan tao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((sach hoi) OR (sach doi)) tap, nghien cuu dong luc nganh khong hoc ma hoi va phan tao.
• Adding a wildcard symbol may retrieve word variants: tu ((sach hoi) or (sach doi)) tap, nghien cuu dong luc nganh khong hoc ma hoi va phan tao*.