Perhaps you should try some spelling variations:
nganh khoa » nganh hoa, nganh khong, doanh khoa
coc nganh » hoc nganh, cac nganh, chuc nganh
cuu cong » cua cong, thu cong, cac cong
cong coc » cong cuoc, cong cac, cong co
khoa hoc » hoa hoc
van nhan » van phan, van thanh, danh nhan
mai tap » bai tap, mai tat, mai tan
va nhan » ca nhan, va phan, va nha
hoc xa » hoc ma
bach » sach, cach, bac

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

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