Perhaps you should try some spelling variations:
nganh cong » nhanh chong, thanh cong
hoc nganh » hoc nhanh
sach hoi » sach doi, sach moi, cach thoi
cong hoc » dong hoc, cong hoa, cong coc
cau nhan » chau nhan, ca nhan, cam nhan
so sach » so sanh, bo sach, co sach
hoi tap » hoi dap, hoc tap, hoi tai
cu nhan » ca nhan
cuu co » huu co, cua co, cuu mo
hoc xa » hoc ma

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "so sach hoi tap, nghien cuu co hoc nganh cong hoc xa hoi ((cau nhan) OR (cu nhan)) van~".
• Adding a wildcard symbol may retrieve word variants: so sach hoi tap, nghien cuu co hoc nganh cong hoc xa hoi ((cau nhan) OR (cu nhan)) van*.