Perhaps you should try some spelling variations:
nghien cac » nghiep cach, nghien cuu, nghiep cay
nganh khoa » nganh hoa, nganh khong, anh khoa
doanh khoa » toan khoa
cach hoc » cach thuc, cach thoi, dich hoc
cac cong » cua cong
cong coc » cong cuoc, cong cac, cong co
nhan van » nhan dan, nhan va, phan van
tu cach » tu cac
va nhan » van nhan, ca nhan, va phan
hoc xa » hoc ma

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu cach hoc tap, nghien cac cong coc ((nganh khoa) or (doanh khoa)) hoc xa hoi va nhan van~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu cach hoc tap, nghien cac cong coc ((nganh khoa) OR (doanh khoa)) hoc xa hoi va nhan van.
• Adding a wildcard symbol may retrieve word variants: tu cach hoc tap, nghien cac cong coc ((nganh khoa) or (doanh khoa)) hoc xa hoi va nhan van*.