Perhaps you should try some spelling variations:
hoc doanh » hoa doanh, hoc danh, hoc dan
doanh hoa » doanh khoa, doanh hoan, danh hoa
cuu cong » cua cong, thu cong, cac cong
cong hoc » dong hoc, cong hoa, cong coc
van nhan » van phan, van thanh, danh nhan
va phan » van phan, va phat, va phap
vu cac » va cac, tu cac, ve cac
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: vu cac bai tap, nghien cuu cong hoc doanh hoa hoc xa hoi ((va phan) or (van nhan)) van~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu cac bai tap, nghien cuu cong hoc doanh hoa hoc xa hoi ((va phan) OR (van nhan)) van.
• Adding a wildcard symbol may retrieve word variants: vu cac bai tap, nghien cuu cong hoc doanh hoa hoc xa hoi ((va phan) or (van nhan)) van*.