Perhaps you should try some spelling variations:
nghien cua » nghien cuu, nghiep cua, nghiep vua
nganh khoa » nganh hoa, nganh khong, doanh khoa
cach thoi » cac thoi, cach thuc, cach noi
luc nganh » luc ngan, chuc nganh, luat nganh
mach hoc » cach hoc, dich hoc, anh hoc
cong luc » dong luc, cong suc, cong duc
khoa hoc » hoa hoc
van nhan » van phan, van thanh, danh nhan
nhan dan » phan dau, gian dan, nhan tai
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.

• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((mach hoc) OR (cach thoi)) tap, nghien cua cong luc nganh khoa hoc ma hoi van nhan dan~.
• Adding a wildcard symbol may retrieve word variants: tu ((mach hoc) or (cach thoi)) tap, nghien cua cong luc nganh khoa hoc ma hoi van nhan dan*.